# ============================================================
# ANALISIS LINEAR MIXED EFFECT
# Psychological Flexibility dan Emotional Well-Being
# ============================================================


# Library

library(readr)
library(dplyr)
library(ggplot2)
library(lme4)
library(lmerTest)
library(broom.mixed)
library(performance)


# Membaca data

# Membaca data
library(readr)

Dataset_longitudinal_GLS <- read_csv2("Dataset_longitudinal_GLS.csv")

View(Dataset_longitudinal_GLS)

str(Dataset_longitudinal_GLS)
## spc_tbl_ [546 × 9] (S3: spec_tbl_df/tbl_df/tbl/data.frame)
##  $ id            : num [1:546] 1 1 1 2 2 2 3 3 3 4 ...
##  $ IDUser        : num [1:546] 230642 230642 230642 274870 274870 ...
##  $ Time_Point    : num [1:546] 1 2 3 1 2 3 1 2 3 1 ...
##  $ RespondPrePost: num [1:546] 1 1 1 1 1 1 1 1 1 1 ...
##  $ Completers    : num [1:546] 1 1 1 1 1 1 1 1 1 1 ...
##  $ Groups        : num [1:546] 0 0 0 0 0 0 0 0 0 0 ...
##  $ Sex_at_birth  : num [1:546] 1 1 1 1 1 1 1 1 1 1 ...
##  $ Emot_Well_T   : num [1:546] 5.58e+14 5.63e+14 4.58e+14 5.82e+14 5.61e+14 ...
##  $ Psych_Infle_T : num [1:546] 5.75e+13 5.06e+14 5.86e+14 4.53e+14 4.80e+14 ...
##  - attr(*, "spec")=
##   .. cols(
##   ..   id = col_double(),
##   ..   IDUser = col_double(),
##   ..   Time_Point = col_double(),
##   ..   RespondPrePost = col_double(),
##   ..   Completers = col_double(),
##   ..   Groups = col_double(),
##   ..   Sex_at_birth = col_double(),
##   ..   Emot_Well_T = col_number(),
##   ..   Psych_Infle_T = col_number()
##   .. )
##  - attr(*, "problems")=<externalptr>
dim(Dataset_longitudinal_GLS)
## [1] 546   9
names(Dataset_longitudinal_GLS)
## [1] "id"             "IDUser"         "Time_Point"     "RespondPrePost"
## [5] "Completers"     "Groups"         "Sex_at_birth"   "Emot_Well_T"   
## [9] "Psych_Infle_T"
head(Dataset_longitudinal_GLS)
## # A tibble: 6 × 9
##      id IDUser Time_Point RespondPrePost Completers Groups Sex_at_birth
##   <dbl>  <dbl>      <dbl>          <dbl>      <dbl>  <dbl>        <dbl>
## 1     1 230642          1              1          1      0            1
## 2     1 230642          2              1          1      0            1
## 3     1 230642          3              1          1      0            1
## 4     2 274870          1              1          1      0            1
## 5     2 274870          2              1          1      0            1
## 6     2 274870          3              1          1      0            1
## # ℹ 2 more variables: Emot_Well_T <dbl>, Psych_Infle_T <dbl>
colSums(is.na(Dataset_longitudinal_GLS))
##             id         IDUser     Time_Point RespondPrePost     Completers 
##              0              0              0              0              0 
##         Groups   Sex_at_birth    Emot_Well_T  Psych_Infle_T 
##              0              0             74             51
# Persiapan variabel

Dataset_longitudinal_GLS <- Dataset_longitudinal_GLS %>%
  mutate(
    id = factor(id),
    Time_Point = factor(
      Time_Point,
      levels = c(1, 2, 3),
      labels = c("Pre", "Post", "Follow-up")
    ),
    Groups = factor(
      Groups,
      levels = c(0, 1),
      labels = c("Wait-list Control", "Experimental")
    )
  )

levels(Dataset_longitudinal_GLS$id)
##   [1] "1"   "2"   "3"   "4"   "5"   "6"   "7"   "8"   "9"   "10"  "11"  "12" 
##  [13] "13"  "14"  "15"  "16"  "17"  "18"  "19"  "20"  "21"  "22"  "23"  "24" 
##  [25] "25"  "26"  "27"  "28"  "29"  "30"  "31"  "32"  "33"  "34"  "35"  "36" 
##  [37] "37"  "38"  "39"  "40"  "41"  "42"  "43"  "44"  "45"  "46"  "47"  "48" 
##  [49] "49"  "50"  "51"  "52"  "53"  "54"  "55"  "56"  "57"  "58"  "59"  "60" 
##  [61] "61"  "62"  "63"  "64"  "65"  "66"  "67"  "68"  "69"  "70"  "71"  "72" 
##  [73] "73"  "74"  "75"  "76"  "77"  "78"  "79"  "80"  "81"  "82"  "83"  "84" 
##  [85] "85"  "86"  "87"  "88"  "89"  "90"  "91"  "92"  "93"  "94"  "95"  "96" 
##  [97] "97"  "98"  "99"  "100" "101" "102" "103" "104" "105" "106" "107" "108"
## [109] "109" "110" "111" "112" "113" "114" "115" "116" "117" "118" "119" "120"
## [121] "121" "122" "123" "124" "125" "126" "127" "128" "129" "130" "131" "132"
## [133] "133" "134" "135" "136" "137" "138" "139" "140" "141" "142" "143" "144"
## [145] "145" "146" "147" "148" "149" "150" "151" "152" "153" "154" "155" "156"
## [157] "157" "158" "159" "160" "161" "162" "163" "164" "165" "166" "167" "168"
## [169] "169" "170" "171" "172" "173" "174" "175" "176" "177" "178" "179" "180"
## [181] "181" "182"
levels(Dataset_longitudinal_GLS$Time_Point)
## [1] "Pre"       "Post"      "Follow-up"
levels(Dataset_longitudinal_GLS$Groups)
## [1] "Wait-list Control" "Experimental"
unique(Dataset_longitudinal_GLS$Time_Point)
## [1] Pre       Post      Follow-up
## Levels: Pre Post Follow-up
unique(Dataset_longitudinal_GLS$Groups)
## [1] Wait-list Control Experimental     
## Levels: Wait-list Control Experimental
# 4.1 Statistik Deskriptif


# Statistik deskriptif Psychological Flexibility

deskriptif_pf <- Dataset_longitudinal_GLS %>%
  group_by(Groups, Time_Point) %>%
  summarise(
    n = sum(!is.na(Psych_Infle_T)),
    mean = mean(Psych_Infle_T, na.rm = TRUE),
    sd = sd(Psych_Infle_T, na.rm = TRUE),
    min = min(Psych_Infle_T, na.rm = TRUE),
    max = max(Psych_Infle_T, na.rm = TRUE),
    .groups = "drop"
  )

deskriptif_pf
## # A tibble: 6 × 7
##   Groups            Time_Point     n    mean      sd     min     max
##   <fct>             <fct>      <int>   <dbl>   <dbl>   <dbl>   <dbl>
## 1 Wait-list Control Pre           85 4.52e14 1.60e14 6.39e12 6.92e14
## 2 Wait-list Control Post          82 4.63e14 1.45e14 3.41e11 7.03e14
## 3 Wait-list Control Follow-up     65 4.42e14 1.27e14 4.48e13 7.14e14
## 4 Experimental      Pre           97 4.60e14 1.65e14 5.27e12 7.24e14
## 5 Experimental      Post          89 4.03e14 1.62e14 3.04e12 6.76e14
## 6 Experimental      Follow-up     77 3.94e14 1.53e14 3.04e12 6.56e14
# Statistik deskriptif Emotional Well-Being

deskriptif_ewb <- Dataset_longitudinal_GLS %>%
  group_by(Groups, Time_Point) %>%
  summarise(
    n = sum(!is.na(Emot_Well_T)),
    mean = mean(Emot_Well_T, na.rm = TRUE),
    sd = sd(Emot_Well_T, na.rm = TRUE),
    min = min(Emot_Well_T, na.rm = TRUE),
    max = max(Emot_Well_T, na.rm = TRUE),
    .groups = "drop"
  )

deskriptif_ewb
## # A tibble: 6 × 7
##   Groups            Time_Point     n    mean      sd     min     max
##   <fct>             <fct>      <int>   <dbl>   <dbl>   <dbl>   <dbl>
## 1 Wait-list Control Pre           83 4.65e14 1.58e14 5.87e12 6.56e14
## 2 Wait-list Control Post          81 4.70e14 1.52e14 6.36e12 6.64e14
## 3 Wait-list Control Follow-up     63 5.14e14 1.52e14 5.52e12 6.55e14
## 4 Experimental      Pre           94 4.29e14 1.94e14 3.86e12 6.72e14
## 5 Experimental      Post          82 4.84e14 1.73e14 5.28e13 6.82e14
## 6 Experimental      Follow-up     69 5.41e14 1.15e14 6.01e13 6.72e14
# Menyimpan hasil statistik deskriptif

write.csv(
  deskriptif_pf,
  "Tabel_4_1_Deskriptif_Psychological_Flexibility.csv",
  row.names = FALSE
)

write.csv(
  deskriptif_ewb,
  "Tabel_4_2_Deskriptif_Emotional_Well_Being.csv",
  row.names = FALSE
)


# 4.2 Visualisasi Data

# Rata-rata Psychological Flexibility

ggplot(
  Dataset_longitudinal_GLS,
  aes(
    x = Time_Point,
    y = Psych_Infle_T,
    group = Groups,
    linetype = Groups
  )
) +
  stat_summary(
    fun = mean,
    geom = "line",
    linewidth = 1
  ) +
  stat_summary(
    fun = mean,
    geom = "point",
    size = 3
  ) +
  labs(
    title = "Rata-rata Psychological Flexibility Berdasarkan Waktu dan Kelompok",
    x = "Waktu Pengukuran",
    y = "Psychological Flexibility",
    linetype = "Kelompok"
  ) +
  theme_minimal()

# Perubahan Psychological Flexibility setiap individu

ggplot(
  Dataset_longitudinal_GLS,
  aes(
    x = Time_Point,
    y = Psych_Infle_T,
    group = id
  )
) +
  geom_line(alpha = 0.2) +
  geom_point(alpha = 0.3) +
  facet_wrap(~ Groups) +
  labs(
    title = "Perubahan Psychological Flexibility Individu",
    x = "Waktu Pengukuran",
    y = "Psychological Flexibility"
  ) +
  theme_minimal()

# Rata-rata Emotional Well-Being

ggplot(
  Dataset_longitudinal_GLS,
  aes(
    x = Time_Point,
    y = Emot_Well_T,
    group = Groups,
    linetype = Groups
  )
) +
  stat_summary(
    fun = mean,
    geom = "line",
    linewidth = 1
  ) +
  stat_summary(
    fun = mean,
    geom = "point",
    size = 3
  ) +
  labs(
    title = "Rata-rata Emotional Well-Being Berdasarkan Waktu dan Kelompok",
    x = "Waktu Pengukuran",
    y = "Emotional Well-Being",
    linetype = "Kelompok"
  ) +
  theme_minimal()

# Perubahan Emotional Well-Being setiap individu

ggplot(
  Dataset_longitudinal_GLS,
  aes(
    x = Time_Point,
    y = Emot_Well_T,
    group = id
  )
) +
  geom_line(alpha = 0.2) +
  geom_point(alpha = 0.3) +
  facet_wrap(~ Groups) +
  labs(
    title = "Perubahan Emotional Well-Being Individu",
    x = "Waktu Pengukuran",
    y = "Emotional Well-Being"
  ) +
  theme_minimal()

# 4.3 Pembentukan Model Linear Mixed Effect

# Model Psychological Flexibility

model_pf <- lmer(
  Psych_Infle_T ~ Time_Point * Groups + (1 | id),
  data = Dataset_longitudinal_GLS,
  REML = FALSE
)

summary(model_pf)
## Linear mixed model fit by maximum likelihood . t-tests use Satterthwaite's
##   method [lmerModLmerTest]
## Formula: Psych_Infle_T ~ Time_Point * Groups + (1 | id)
##    Data: Dataset_longitudinal_GLS
## 
##       AIC       BIC    logLik -2*log(L)  df.resid 
##   33741.3   33774.9  -16862.6   33725.3       487 
## 
## Scaled residuals: 
##     Min      1Q  Median      3Q     Max 
## -3.0368 -0.2782  0.1353  0.5509  1.9129 
## 
## Random effects:
##  Groups   Name        Variance  Std.Dev. 
##  id       (Intercept) 4.097e+27 6.401e+13
##  Residual             1.925e+28 1.387e+14
## Number of obs: 495, groups:  id, 182
## 
## Fixed effects:
##                                          Estimate Std. Error         df t value
## (Intercept)                             4.521e+14  1.657e+13  7.949e+02  27.281
## Time_PointPost                          1.085e+13  2.151e+13  3.646e+06   0.504
## Time_PointFollow-up                    -1.180e+13  2.309e+13  1.196e+05  -0.511
## GroupsExperimental                      7.453e+12  2.270e+13  7.949e+02   0.328
## Time_PointPost:GroupsExperimental      -6.715e+13  2.967e+13  1.328e+06  -2.263
## Time_PointFollow-up:GroupsExperimental -5.546e+13  3.146e+13  1.271e+05  -1.763
##                                        Pr(>|t|)    
## (Intercept)                              <2e-16 ***
## Time_PointPost                           0.6140    
## Time_PointFollow-up                      0.6092    
## GroupsExperimental                       0.7428    
## Time_PointPost:GroupsExperimental        0.0236 *  
## Time_PointFollow-up:GroupsExperimental   0.0779 .  
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Correlation of Fixed Effects:
##             (Intr) Tm_PnP Tm_PF- GrpsEx T_PP:G
## Time_PntPst -0.635                            
## Tm_PntFllw- -0.592  0.459                     
## GrpsExprmnt -0.730  0.464  0.432              
## Tm_PntPs:GE  0.460 -0.725 -0.333 -0.631       
## Tm_PntF-:GE  0.434 -0.337 -0.734 -0.595  0.460
coef_pf <- summary(model_pf)$coefficients

coef_pf
##                                             Estimate   Std. Error           df
## (Intercept)                             4.521252e+14 1.657276e+13     794.8791
## Time_PointPost                          1.084779e+13 2.150929e+13 3646199.0649
## Time_PointFollow-up                    -1.180353e+13 2.309132e+13  119628.8680
## GroupsExperimental                      7.453108e+12 2.270099e+13     794.8791
## Time_PointPost:GroupsExperimental      -6.714805e+13 2.967318e+13 1328465.9353
## Time_PointFollow-up:GroupsExperimental -5.546196e+13 3.146100e+13  127074.5428
##                                           t value      Pr(>|t|)
## (Intercept)                            27.2812215 3.567441e-116
## Time_PointPost                          0.5043304  6.140293e-01
## Time_PointFollow-up                    -0.5111676  6.092346e-01
## GroupsExperimental                      0.3283165  7.427588e-01
## Time_PointPost:GroupsExperimental      -2.2629207  2.364074e-02
## Time_PointFollow-up:GroupsExperimental -1.7628797  7.792318e-02
# Model Emotional Well-Being

model_ewb <- lmer(
  Emot_Well_T ~ Time_Point * Groups + (1 | id),
  data = Dataset_longitudinal_GLS,
  REML = FALSE
)

summary(model_ewb)
## Linear mixed model fit by maximum likelihood . t-tests use Satterthwaite's
##   method [lmerModLmerTest]
## Formula: Emot_Well_T ~ Time_Point * Groups + (1 | id)
##    Data: Dataset_longitudinal_GLS
## 
##       AIC       BIC    logLik -2*log(L)  df.resid 
##   32220.9   32254.2  -16102.5   32204.9       464 
## 
## Scaled residuals: 
##     Min      1Q  Median      3Q     Max 
## -3.1293 -0.2635  0.2475  0.5645  1.6445 
## 
## Random effects:
##  Groups   Name        Variance  Std.Dev. 
##  id       (Intercept) 4.902e+27 7.001e+13
##  Residual             2.095e+28 1.448e+14
## Number of obs: 472, groups:  id, 181
## 
## Fixed effects:
##                                          Estimate Std. Error         df t value
## (Intercept)                             4.642e+14  1.764e+13  6.791e+02  26.316
## Time_PointPost                          6.242e+12  2.268e+13  9.225e+05   0.275
## Time_PointFollow-up                     5.170e+13  2.448e+13  8.447e+04   2.111
## GroupsExperimental                     -3.534e+13  2.421e+13  6.784e+02  -1.460
## Time_PointPost:GroupsExperimental       4.523e+13  3.164e+13  3.048e+05   1.430
## Time_PointFollow-up:GroupsExperimental  6.033e+13  3.378e+13  7.074e+04   1.786
##                                        Pr(>|t|)    
## (Intercept)                              <2e-16 ***
## Time_PointPost                           0.7832    
## Time_PointFollow-up                      0.0347 *  
## GroupsExperimental                       0.1447    
## Time_PointPost:GroupsExperimental        0.1528    
## Time_PointFollow-up:GroupsExperimental   0.0741 .  
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Correlation of Fixed Effects:
##             (Intr) Tm_PnP Tm_PF- GrpsEx T_PP:G
## Time_PntPst -0.634                            
## Tm_PntFllw- -0.586  0.459                     
## GrpsExprmnt -0.729  0.462  0.427              
## Tm_PntPs:GE  0.454 -0.717 -0.329 -0.623       
## Tm_PntF-:GE  0.425 -0.332 -0.725 -0.583  0.452
coef_ewb <- summary(model_ewb)$coefficients

coef_ewb
##                                             Estimate   Std. Error          df
## (Intercept)                             4.641987e+14 1.763972e+13    679.0568
## Time_PointPost                          6.241809e+12 2.268308e+13 922494.8593
## Time_PointFollow-up                     5.169579e+13 2.448392e+13  84465.1156
## GroupsExperimental                     -3.534170e+13 2.420626e+13    678.3670
## Time_PointPost:GroupsExperimental       4.523305e+13 3.163740e+13 304837.3041
## Time_PointFollow-up:GroupsExperimental  6.032549e+13 3.377747e+13  70736.6615
##                                           t value      Pr(>|t|)
## (Intercept)                            26.3155413 9.378589e-106
## Time_PointPost                          0.2751746  7.831821e-01
## Time_PointFollow-up                     2.1114178  3.473935e-02
## GroupsExperimental                     -1.4600228  1.447468e-01
## Time_PointPost:GroupsExperimental       1.4297336  1.527945e-01
## Time_PointFollow-up:GroupsExperimental  1.7859680  7.410872e-02
# Formula model

formula(model_pf)
## Psych_Infle_T ~ Time_Point * Groups + (1 | id)
formula(model_ewb)
## Emot_Well_T ~ Time_Point * Groups + (1 | id)
# 4.4 Estimasi Parameter dan Kesesuaian Model

# Interval kepercayaan model Psychological Flexibility

confint(
  model_pf,
  method = "Wald"
)
##                                                2.5 %        97.5 %
## .sig01                                            NA            NA
## .sigma                                            NA            NA
## (Intercept)                             4.196432e+14  4.846072e+14
## Time_PointPost                         -3.130964e+13  5.300522e+13
## Time_PointFollow-up                    -5.706168e+13  3.345461e+13
## GroupsExperimental                     -3.704001e+13  5.194623e+13
## Time_PointPost:GroupsExperimental      -1.253064e+14 -8.989689e+12
## Time_PointFollow-up:GroupsExperimental -1.171244e+14  6.200469e+12
# Interval kepercayaan model Emotional Well-Being

confint(
  model_ewb,
  method = "Wald"
)
##                                                2.5 %       97.5 %
## .sig01                                            NA           NA
## .sigma                                            NA           NA
## (Intercept)                             4.296255e+14 4.987719e+14
## Time_PointPost                         -3.821621e+13 5.069983e+13
## Time_PointFollow-up                     3.708183e+12 9.968340e+13
## GroupsExperimental                     -8.278510e+13 1.210171e+13
## Time_PointPost:GroupsExperimental      -1.677511e+13 1.072412e+14
## Time_PointFollow-up:GroupsExperimental -5.877144e+12 1.265281e+14
# Ukuran model Psychological Flexibility

AIC(model_pf)
## [1] 33741.26
BIC(model_pf)
## [1] 33774.9
logLik(model_pf)
## 'log Lik.' -16862.63 (df=8)
# Ukuran model Emotional Well-Being

AIC(model_ewb)
## [1] 32220.92
BIC(model_ewb)
## [1] 32254.18
logLik(model_ewb)
## 'log Lik.' -16102.46 (df=8)
# Fixed effect Psychological Flexibility

fixed_pf <- broom.mixed::tidy(
  model_pf,
  effects = "fixed",
  conf.int = TRUE
)

fixed_pf
## # A tibble: 6 × 9
##   effect term   estimate std.error statistic     df   p.value conf.low conf.high
##   <chr>  <chr>     <dbl>     <dbl>     <dbl>  <dbl>     <dbl>    <dbl>     <dbl>
## 1 fixed  (Inte…  4.52e14   1.66e13    27.3   7.95e2 3.57e-116  4.20e14   4.85e14
## 2 fixed  Time_…  1.08e13   2.15e13     0.504 3.65e6 6.14e-  1 -3.13e13   5.30e13
## 3 fixed  Time_… -1.18e13   2.31e13    -0.511 1.20e5 6.09e-  1 -5.71e13   3.35e13
## 4 fixed  Group…  7.45e12   2.27e13     0.328 7.95e2 7.43e-  1 -3.71e13   5.20e13
## 5 fixed  Time_… -6.71e13   2.97e13    -2.26  1.33e6 2.36e-  2 -1.25e14  -8.99e12
## 6 fixed  Time_… -5.55e13   3.15e13    -1.76  1.27e5 7.79e-  2 -1.17e14   6.20e12
# Fixed effect Emotional Well-Being

fixed_ewb <- broom.mixed::tidy(
  model_ewb,
  effects = "fixed",
  conf.int = TRUE
)

fixed_ewb
## # A tibble: 6 × 9
##   effect term   estimate std.error statistic     df   p.value conf.low conf.high
##   <chr>  <chr>     <dbl>     <dbl>     <dbl>  <dbl>     <dbl>    <dbl>     <dbl>
## 1 fixed  (Inte…  4.64e14   1.76e13    26.3   6.79e2 9.38e-106  4.30e14   4.99e14
## 2 fixed  Time_…  6.24e12   2.27e13     0.275 9.22e5 7.83e-  1 -3.82e13   5.07e13
## 3 fixed  Time_…  5.17e13   2.45e13     2.11  8.45e4 3.47e-  2  3.71e12   9.97e13
## 4 fixed  Group… -3.53e13   2.42e13    -1.46  6.78e2 1.45e-  1 -8.29e13   1.22e13
## 5 fixed  Time_…  4.52e13   3.16e13     1.43  3.05e5 1.53e-  1 -1.68e13   1.07e14
## 6 fixed  Time_…  6.03e13   3.38e13     1.79  7.07e4 7.41e-  2 -5.88e12   1.27e14
# Menyimpan hasil estimasi parameter

write.csv(
  fixed_pf,
  "Hasil_Fixed_Effect_Psychological_Flexibility.csv",
  row.names = FALSE
)

write.csv(
  fixed_ewb,
  "Hasil_Fixed_Effect_Emotional_Well_Being.csv",
  row.names = FALSE
)


# 4.5 Random Effect

# Random effect Psychological Flexibility

ranef(model_pf)
## $id
##       (Intercept)
## 1   -2.674432e+13
## 2    7.354523e+12
## 3   -4.722147e+13
## 4   -5.413846e+13
## 5   -4.032778e+13
## 6    4.671021e+13
## 7    8.730831e+12
## 8    1.076752e+13
## 9    8.738764e+12
## 10   5.227363e+13
## 11  -9.667991e+11
## 12   4.538151e+13
## 13   1.353865e+13
## 14  -3.338276e+13
## 15   3.148090e+13
## 16  -3.755665e+13
## 17   6.606580e+13
## 18  -4.791731e+13
## 19   2.875738e+13
## 20  -4.809251e+13
## 21   6.882635e+13
## 22   1.979154e+13
## 23   8.748717e+13
## 24   3.223385e+13
## 25  -4.151445e+13
## 26  -2.995918e+13
## 27   3.497060e+13
## 28  -4.608007e+13
## 29   1.771518e+13
## 30   7.394196e+12
## 31  -7.824534e+12
## 32   1.150461e+13
## 33  -7.655844e+13
## 34   3.224708e+13
## 35  -3.549615e+13
## 36  -1.405098e+13
## 37   1.908885e+13
## 38  -1.269054e+13
## 39   4.257335e+13
## 40  -5.428934e+13
## 41   5.847891e+13
## 42   3.084961e+13
## 43  -3.858506e+13
## 44  -7.055014e+13
## 45  -2.177600e+13
## 46  -6.428778e+13
## 47   7.145934e+13
## 48  -5.741306e+13
## 49   1.779921e+12
## 50   1.136911e+13
## 51  -1.484686e+13
## 52  -2.815422e+12
## 53   2.521947e+13
## 54   9.300684e+12
## 55   2.521682e+13
## 56  -2.042616e+13
## 57  -7.541532e+13
## 58   2.380878e+13
## 59   2.933517e+13
## 60  -5.296635e+13
## 61  -5.570683e+12
## 62  -3.342640e+13
## 63   4.869340e+13
## 64   2.040107e+13
## 65   3.559071e+13
## 66  -1.127059e+13
## 67  -1.695496e+13
## 68  -9.617421e+13
## 69  -4.582877e+13
## 70   4.457241e+13
## 71  -1.959218e+13
## 72  -6.036014e+13
## 73   5.525268e+13
## 74  -2.706021e+13
## 75   6.664359e+13
## 76   1.413760e+13
## 77  -1.069942e+13
## 78   8.117549e+13
## 79   7.633328e+13
## 80  -2.520487e+13
## 81  -2.867076e+13
## 82  -3.834723e+13
## 83   5.489340e+13
## 84  -5.175673e+12
## 85   2.796680e+13
## 86   6.734364e+13
## 87  -2.158663e+13
## 88  -3.697357e+13
## 89   2.586134e+13
## 90  -1.349171e+13
## 91   3.147225e+13
## 92  -2.450216e+13
## 93  -9.566361e+12
## 94   2.404901e+13
## 95   2.590482e+13
## 96   3.430598e+13
## 97   4.203750e+12
## 98   2.242923e+13
## 99  -3.791263e+13
## 100 -5.871983e+11
## 101 -1.963548e+13
## 102  5.896833e+13
## 103  4.456741e+12
## 104 -9.318929e+12
## 105 -2.200360e+13
## 106 -1.172048e+13
## 107  1.526408e+13
## 108  3.244135e+12
## 109 -3.965769e+13
## 110  7.073290e+13
## 111 -1.185425e+13
## 112 -5.246618e+13
## 113  3.247174e+12
## 114 -1.185425e+13
## 115  1.052919e+13
## 116 -5.651306e+13
## 117  3.655260e+13
## 118  3.983661e+13
## 119  5.017346e+13
## 120 -6.125700e+12
## 121  7.153869e+13
## 122 -1.269054e+13
## 123 -5.658501e+13
## 124 -4.880389e+12
## 125  2.311666e+13
## 126  2.529942e+13
## 127  5.904348e+13
## 128  5.344465e+12
## 129  5.283449e+12
## 130  9.308619e+12
## 131  4.523544e+13
## 132  4.899348e+13
## 133  4.451423e+13
## 134  1.040726e+14
## 135  1.977568e+13
## 136  3.639400e+11
## 137 -2.452333e+13
## 138 -4.435982e+13
## 139 -4.042624e+13
## 140 -1.024815e+13
## 141 -6.456833e+13
## 142 -8.006852e+13
## 143 -6.035351e+13
## 144 -4.149380e+13
## 145  8.028131e+12
## 146 -8.651164e+12
## 147 -7.257326e+12
## 148  5.974618e+13
## 149 -3.685032e+12
## 150 -9.212675e+13
## 151  3.141418e+13
## 152 -2.818244e+13
## 153 -2.195996e+13
## 154  2.949711e+13
## 155  1.633359e+13
## 156  1.689815e+13
## 157  2.404749e+13
## 158 -1.826006e+13
## 159 -1.268261e+13
## 160 -2.441321e+13
## 161 -9.562196e+11
## 162  2.656668e+13
## 163  1.275336e+13
## 164  5.658197e+13
## 165  7.937600e+12
## 166 -3.024648e+12
## 167 -2.373437e+13
## 168 -1.829688e+13
## 169 -3.006558e+13
## 170 -5.798421e+12
## 171 -2.996116e+13
## 172 -4.425497e+13
## 173 -6.551981e+12
## 174 -2.076196e+13
## 175  1.165105e+12
## 176 -8.240502e+12
## 177  3.766707e+13
## 178 -2.591021e+13
## 179 -5.467508e+12
## 180 -5.091698e+13
## 181  2.452999e+13
## 182 -3.438532e+13
## 
## with conditional variances for "id"
VarCorr(model_pf)
##  Groups   Name        Std.Dev.  
##  id       (Intercept) 6.4009e+13
##  Residual             1.3874e+14
as.data.frame(
  VarCorr(model_pf)
)
##        grp        var1 var2         vcov        sdcor
## 1       id (Intercept) <NA> 4.097103e+27 6.400862e+13
## 2 Residual        <NA> <NA> 1.924870e+28 1.387397e+14
# Random effect Emotional Well-Being

ranef(model_ewb)
## $id
##       (Intercept)
## 1    1.776951e+13
## 2    4.036343e+13
## 3   -1.126451e+13
## 4    4.716990e+13
## 5    4.880585e+13
## 6   -4.936637e+13
## 7    3.144740e+13
## 8   -6.296028e+13
## 9    3.122324e+13
## 10  -9.399002e+11
## 11   2.925270e+13
## 12  -1.286523e+13
## 13   5.552226e+12
## 14  -2.489466e+13
## 15  -6.806380e+12
## 16   3.661714e+13
## 17  -9.284785e+13
## 18   4.102973e+13
## 19  -2.043332e+13
## 20   3.101586e+13
## 21  -9.591719e+13
## 22   1.449763e+13
## 23  -5.756785e+13
## 24   1.911304e+13
## 25   4.846832e+13
## 26   2.989731e+13
## 27  -1.774802e+13
## 28  -6.003953e+13
## 29   4.013461e+13
## 30   3.105714e+13
## 31   6.799860e+12
## 32   8.587714e+12
## 33   3.797410e+13
## 34  -4.968816e+13
## 35   3.686917e+13
## 36   5.061321e+13
## 37  -1.356875e+13
## 38   5.261375e+13
## 39  -7.467125e+12
## 40   4.179048e+13
## 41  -9.556762e+13
## 42   1.282832e+13
## 43   3.396214e+13
## 44   6.505407e+13
## 45  -2.777885e+13
## 46   5.101549e+13
## 47  -3.129506e+13
## 48  -6.166216e+13
## 49   5.163827e+13
## 50   1.587405e+13
## 51  -2.263968e+13
## 52  -6.499562e+13
## 53   5.525601e+12
## 54   5.274891e+12
## 55  -4.885846e+13
## 56   2.414895e+13
## 57   7.905343e+13
## 58  -1.117936e+12
## 59  -1.974542e+11
## 60   1.818324e+13
## 61  -4.017294e+13
## 62  -4.690106e+13
## 63   5.663860e+12
## 64   2.488551e+13
## 65   3.388169e+13
## 66  -3.345375e+13
## 67   3.851686e+13
## 68  -1.332376e+14
## 69  -5.485801e+13
## 70  -1.049131e+13
## 71  -6.269079e+12
## 72   4.879380e+13
## 73  -3.461855e+12
## 74   2.873555e+13
## 75  -1.154119e+13
## 76   4.074308e+13
## 77   5.317290e+13
## 78  -6.379475e+12
## 79  -8.417104e+13
## 80   9.120076e+12
## 81   2.751753e+13
## 82  -2.002240e+13
## 83  -1.522377e+13
## 84   4.107474e+13
## 85   5.776168e+13
## 86  -4.046318e+13
## 87   2.896325e+13
## 88   4.317074e+13
## 89   8.891461e+12
## 90   3.574891e+13
## 91   1.083555e+13
## 93  -8.040810e+13
## 94  -2.035606e+13
## 95  -8.045111e+13
## 96   8.613728e+12
## 97   2.116888e+13
## 98  -7.639549e+13
## 99   4.347303e+13
## 100  2.435376e+13
## 101  4.134535e+13
## 102 -4.280958e+13
## 103  7.806972e+11
## 104  2.916438e+13
## 105  2.777646e+13
## 106  2.942159e+13
## 107 -3.101344e+12
## 108  5.134448e+13
## 109 -5.115514e+12
## 110 -2.660447e+13
## 111 -7.028047e+13
## 112 -7.156672e+13
## 113 -1.981352e+13
## 114 -2.322208e+13
## 115  1.957105e+13
## 116  4.806724e+13
## 117 -2.814602e+13
## 118 -6.633595e+13
## 119 -8.115368e+13
## 120  2.364953e+13
## 121 -6.896863e+13
## 122  3.306130e+13
## 123  3.992220e+13
## 124  6.454830e+12
## 125  3.488947e+13
## 126 -1.691328e+13
## 127 -6.673917e+13
## 128 -1.463623e+13
## 129  3.031701e+12
## 130  5.451396e+12
## 131  1.052570e+12
## 132 -8.556588e+12
## 133  1.910244e+13
## 134 -4.410930e+13
## 135 -3.130629e+13
## 136  6.304213e+13
## 137 -2.194131e+13
## 138 -2.912637e+13
## 139 -4.662672e+13
## 140  3.783072e+13
## 141  6.222854e+13
## 142  5.012294e+13
## 143  7.921687e+12
## 144  3.483876e+13
## 145  1.629907e+13
## 146  1.798415e+13
## 147  2.212639e+13
## 148 -7.475924e+13
## 149 -3.702402e+13
## 150 -2.059265e+13
## 151  4.212037e+13
## 152 -3.092129e+13
## 153 -7.400235e+13
## 154  3.686402e+13
## 155  1.811530e+13
## 156  3.389165e+13
## 157  1.555414e+13
## 158  1.452871e+13
## 159  5.353203e+13
## 160 -3.406510e+13
## 161 -3.707035e+13
## 162 -1.066385e+14
## 163 -3.307163e+13
## 164 -9.152819e+13
## 165  6.127389e+12
## 166  2.724620e+13
## 167  5.720186e+13
## 168  4.404403e+13
## 169  5.992214e+13
## 170  4.422274e+13
## 171 -7.753619e+13
## 172  5.431250e+13
## 173  6.112971e+13
## 174  4.557839e+13
## 175  1.856222e+13
## 176  2.628217e+12
## 177  1.067035e+13
## 178 -1.009265e+13
## 179  2.447528e+13
## 180 -1.748116e+13
## 181  1.703587e+13
## 182 -5.595056e+13
## 
## with conditional variances for "id"
VarCorr(model_ewb)
##  Groups   Name        Std.Dev.  
##  id       (Intercept) 7.0012e+13
##  Residual             1.4475e+14
as.data.frame(
  VarCorr(model_ewb)
)
##        grp        var1 var2         vcov        sdcor
## 1       id (Intercept) <NA> 4.901729e+27 7.001235e+13
## 2 Residual        <NA> <NA> 2.095386e+28 1.447545e+14
# Random intercept setiap individu

random_pf <- ranef(
  model_pf,
  condVar = TRUE
)

random_ewb <- ranef(
  model_ewb,
  condVar = TRUE
)

random_pf
## $id
##       (Intercept)
## 1   -2.674432e+13
## 2    7.354523e+12
## 3   -4.722147e+13
## 4   -5.413846e+13
## 5   -4.032778e+13
## 6    4.671021e+13
## 7    8.730831e+12
## 8    1.076752e+13
## 9    8.738764e+12
## 10   5.227363e+13
## 11  -9.667991e+11
## 12   4.538151e+13
## 13   1.353865e+13
## 14  -3.338276e+13
## 15   3.148090e+13
## 16  -3.755665e+13
## 17   6.606580e+13
## 18  -4.791731e+13
## 19   2.875738e+13
## 20  -4.809251e+13
## 21   6.882635e+13
## 22   1.979154e+13
## 23   8.748717e+13
## 24   3.223385e+13
## 25  -4.151445e+13
## 26  -2.995918e+13
## 27   3.497060e+13
## 28  -4.608007e+13
## 29   1.771518e+13
## 30   7.394196e+12
## 31  -7.824534e+12
## 32   1.150461e+13
## 33  -7.655844e+13
## 34   3.224708e+13
## 35  -3.549615e+13
## 36  -1.405098e+13
## 37   1.908885e+13
## 38  -1.269054e+13
## 39   4.257335e+13
## 40  -5.428934e+13
## 41   5.847891e+13
## 42   3.084961e+13
## 43  -3.858506e+13
## 44  -7.055014e+13
## 45  -2.177600e+13
## 46  -6.428778e+13
## 47   7.145934e+13
## 48  -5.741306e+13
## 49   1.779921e+12
## 50   1.136911e+13
## 51  -1.484686e+13
## 52  -2.815422e+12
## 53   2.521947e+13
## 54   9.300684e+12
## 55   2.521682e+13
## 56  -2.042616e+13
## 57  -7.541532e+13
## 58   2.380878e+13
## 59   2.933517e+13
## 60  -5.296635e+13
## 61  -5.570683e+12
## 62  -3.342640e+13
## 63   4.869340e+13
## 64   2.040107e+13
## 65   3.559071e+13
## 66  -1.127059e+13
## 67  -1.695496e+13
## 68  -9.617421e+13
## 69  -4.582877e+13
## 70   4.457241e+13
## 71  -1.959218e+13
## 72  -6.036014e+13
## 73   5.525268e+13
## 74  -2.706021e+13
## 75   6.664359e+13
## 76   1.413760e+13
## 77  -1.069942e+13
## 78   8.117549e+13
## 79   7.633328e+13
## 80  -2.520487e+13
## 81  -2.867076e+13
## 82  -3.834723e+13
## 83   5.489340e+13
## 84  -5.175673e+12
## 85   2.796680e+13
## 86   6.734364e+13
## 87  -2.158663e+13
## 88  -3.697357e+13
## 89   2.586134e+13
## 90  -1.349171e+13
## 91   3.147225e+13
## 92  -2.450216e+13
## 93  -9.566361e+12
## 94   2.404901e+13
## 95   2.590482e+13
## 96   3.430598e+13
## 97   4.203750e+12
## 98   2.242923e+13
## 99  -3.791263e+13
## 100 -5.871983e+11
## 101 -1.963548e+13
## 102  5.896833e+13
## 103  4.456741e+12
## 104 -9.318929e+12
## 105 -2.200360e+13
## 106 -1.172048e+13
## 107  1.526408e+13
## 108  3.244135e+12
## 109 -3.965769e+13
## 110  7.073290e+13
## 111 -1.185425e+13
## 112 -5.246618e+13
## 113  3.247174e+12
## 114 -1.185425e+13
## 115  1.052919e+13
## 116 -5.651306e+13
## 117  3.655260e+13
## 118  3.983661e+13
## 119  5.017346e+13
## 120 -6.125700e+12
## 121  7.153869e+13
## 122 -1.269054e+13
## 123 -5.658501e+13
## 124 -4.880389e+12
## 125  2.311666e+13
## 126  2.529942e+13
## 127  5.904348e+13
## 128  5.344465e+12
## 129  5.283449e+12
## 130  9.308619e+12
## 131  4.523544e+13
## 132  4.899348e+13
## 133  4.451423e+13
## 134  1.040726e+14
## 135  1.977568e+13
## 136  3.639400e+11
## 137 -2.452333e+13
## 138 -4.435982e+13
## 139 -4.042624e+13
## 140 -1.024815e+13
## 141 -6.456833e+13
## 142 -8.006852e+13
## 143 -6.035351e+13
## 144 -4.149380e+13
## 145  8.028131e+12
## 146 -8.651164e+12
## 147 -7.257326e+12
## 148  5.974618e+13
## 149 -3.685032e+12
## 150 -9.212675e+13
## 151  3.141418e+13
## 152 -2.818244e+13
## 153 -2.195996e+13
## 154  2.949711e+13
## 155  1.633359e+13
## 156  1.689815e+13
## 157  2.404749e+13
## 158 -1.826006e+13
## 159 -1.268261e+13
## 160 -2.441321e+13
## 161 -9.562196e+11
## 162  2.656668e+13
## 163  1.275336e+13
## 164  5.658197e+13
## 165  7.937600e+12
## 166 -3.024648e+12
## 167 -2.373437e+13
## 168 -1.829688e+13
## 169 -3.006558e+13
## 170 -5.798421e+12
## 171 -2.996116e+13
## 172 -4.425497e+13
## 173 -6.551981e+12
## 174 -2.076196e+13
## 175  1.165105e+12
## 176 -8.240502e+12
## 177  3.766707e+13
## 178 -2.591021e+13
## 179 -5.467508e+12
## 180 -5.091698e+13
## 181  2.452999e+13
## 182 -3.438532e+13
## 
## with conditional variances for "id"
random_ewb
## $id
##       (Intercept)
## 1    1.776951e+13
## 2    4.036343e+13
## 3   -1.126451e+13
## 4    4.716990e+13
## 5    4.880585e+13
## 6   -4.936637e+13
## 7    3.144740e+13
## 8   -6.296028e+13
## 9    3.122324e+13
## 10  -9.399002e+11
## 11   2.925270e+13
## 12  -1.286523e+13
## 13   5.552226e+12
## 14  -2.489466e+13
## 15  -6.806380e+12
## 16   3.661714e+13
## 17  -9.284785e+13
## 18   4.102973e+13
## 19  -2.043332e+13
## 20   3.101586e+13
## 21  -9.591719e+13
## 22   1.449763e+13
## 23  -5.756785e+13
## 24   1.911304e+13
## 25   4.846832e+13
## 26   2.989731e+13
## 27  -1.774802e+13
## 28  -6.003953e+13
## 29   4.013461e+13
## 30   3.105714e+13
## 31   6.799860e+12
## 32   8.587714e+12
## 33   3.797410e+13
## 34  -4.968816e+13
## 35   3.686917e+13
## 36   5.061321e+13
## 37  -1.356875e+13
## 38   5.261375e+13
## 39  -7.467125e+12
## 40   4.179048e+13
## 41  -9.556762e+13
## 42   1.282832e+13
## 43   3.396214e+13
## 44   6.505407e+13
## 45  -2.777885e+13
## 46   5.101549e+13
## 47  -3.129506e+13
## 48  -6.166216e+13
## 49   5.163827e+13
## 50   1.587405e+13
## 51  -2.263968e+13
## 52  -6.499562e+13
## 53   5.525601e+12
## 54   5.274891e+12
## 55  -4.885846e+13
## 56   2.414895e+13
## 57   7.905343e+13
## 58  -1.117936e+12
## 59  -1.974542e+11
## 60   1.818324e+13
## 61  -4.017294e+13
## 62  -4.690106e+13
## 63   5.663860e+12
## 64   2.488551e+13
## 65   3.388169e+13
## 66  -3.345375e+13
## 67   3.851686e+13
## 68  -1.332376e+14
## 69  -5.485801e+13
## 70  -1.049131e+13
## 71  -6.269079e+12
## 72   4.879380e+13
## 73  -3.461855e+12
## 74   2.873555e+13
## 75  -1.154119e+13
## 76   4.074308e+13
## 77   5.317290e+13
## 78  -6.379475e+12
## 79  -8.417104e+13
## 80   9.120076e+12
## 81   2.751753e+13
## 82  -2.002240e+13
## 83  -1.522377e+13
## 84   4.107474e+13
## 85   5.776168e+13
## 86  -4.046318e+13
## 87   2.896325e+13
## 88   4.317074e+13
## 89   8.891461e+12
## 90   3.574891e+13
## 91   1.083555e+13
## 93  -8.040810e+13
## 94  -2.035606e+13
## 95  -8.045111e+13
## 96   8.613728e+12
## 97   2.116888e+13
## 98  -7.639549e+13
## 99   4.347303e+13
## 100  2.435376e+13
## 101  4.134535e+13
## 102 -4.280958e+13
## 103  7.806972e+11
## 104  2.916438e+13
## 105  2.777646e+13
## 106  2.942159e+13
## 107 -3.101344e+12
## 108  5.134448e+13
## 109 -5.115514e+12
## 110 -2.660447e+13
## 111 -7.028047e+13
## 112 -7.156672e+13
## 113 -1.981352e+13
## 114 -2.322208e+13
## 115  1.957105e+13
## 116  4.806724e+13
## 117 -2.814602e+13
## 118 -6.633595e+13
## 119 -8.115368e+13
## 120  2.364953e+13
## 121 -6.896863e+13
## 122  3.306130e+13
## 123  3.992220e+13
## 124  6.454830e+12
## 125  3.488947e+13
## 126 -1.691328e+13
## 127 -6.673917e+13
## 128 -1.463623e+13
## 129  3.031701e+12
## 130  5.451396e+12
## 131  1.052570e+12
## 132 -8.556588e+12
## 133  1.910244e+13
## 134 -4.410930e+13
## 135 -3.130629e+13
## 136  6.304213e+13
## 137 -2.194131e+13
## 138 -2.912637e+13
## 139 -4.662672e+13
## 140  3.783072e+13
## 141  6.222854e+13
## 142  5.012294e+13
## 143  7.921687e+12
## 144  3.483876e+13
## 145  1.629907e+13
## 146  1.798415e+13
## 147  2.212639e+13
## 148 -7.475924e+13
## 149 -3.702402e+13
## 150 -2.059265e+13
## 151  4.212037e+13
## 152 -3.092129e+13
## 153 -7.400235e+13
## 154  3.686402e+13
## 155  1.811530e+13
## 156  3.389165e+13
## 157  1.555414e+13
## 158  1.452871e+13
## 159  5.353203e+13
## 160 -3.406510e+13
## 161 -3.707035e+13
## 162 -1.066385e+14
## 163 -3.307163e+13
## 164 -9.152819e+13
## 165  6.127389e+12
## 166  2.724620e+13
## 167  5.720186e+13
## 168  4.404403e+13
## 169  5.992214e+13
## 170  4.422274e+13
## 171 -7.753619e+13
## 172  5.431250e+13
## 173  6.112971e+13
## 174  4.557839e+13
## 175  1.856222e+13
## 176  2.628217e+12
## 177  1.067035e+13
## 178 -1.009265e+13
## 179  2.447528e+13
## 180 -1.748116e+13
## 181  1.703587e+13
## 182 -5.595056e+13
## 
## with conditional variances for "id"
# Menyimpan hasil random effect

random_pf_df <- as.data.frame(
  ranef(model_pf)
)

random_ewb_df <- as.data.frame(
  ranef(model_ewb)
)

write.csv(
  random_pf_df,
  "Hasil_Random_Effect_Psychological_Flexibility.csv",
  row.names = FALSE
)

write.csv(
  random_ewb_df,
  "Hasil_Random_Effect_Emotional_Well_Being.csv",
  row.names = FALSE
)


# Intraclass Correlation Coefficient (ICC)

performance::icc(model_pf)
## # Intraclass Correlation Coefficient
## 
##     Adjusted ICC: 0.175
##   Unadjusted ICC: 0.170
performance::icc(model_ewb)
## # Intraclass Correlation Coefficient
## 
##     Adjusted ICC: 0.190
##   Unadjusted ICC: 0.181
# 4.6 Pengujian Fixed Effect

# Pengujian fixed effect Psychological Flexibility

anova_pf <- anova(model_pf)

anova_pf
## Type III Analysis of Variance Table with Satterthwaite's method
##                       Sum Sq    Mean Sq NumDF  DenDF F value  Pr(>F)  
## Time_Point        1.2503e+29 6.2513e+28     2 290910  3.2476 0.03887 *
## Groups            8.5277e+28 8.5277e+28     1    179  4.4303 0.03670 *
## Time_Point:Groups 1.1129e+29 5.5645e+28     2 290910  2.8909 0.05553 .
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
summary(model_pf)
## Linear mixed model fit by maximum likelihood . t-tests use Satterthwaite's
##   method [lmerModLmerTest]
## Formula: Psych_Infle_T ~ Time_Point * Groups + (1 | id)
##    Data: Dataset_longitudinal_GLS
## 
##       AIC       BIC    logLik -2*log(L)  df.resid 
##   33741.3   33774.9  -16862.6   33725.3       487 
## 
## Scaled residuals: 
##     Min      1Q  Median      3Q     Max 
## -3.0368 -0.2782  0.1353  0.5509  1.9129 
## 
## Random effects:
##  Groups   Name        Variance  Std.Dev. 
##  id       (Intercept) 4.097e+27 6.401e+13
##  Residual             1.925e+28 1.387e+14
## Number of obs: 495, groups:  id, 182
## 
## Fixed effects:
##                                          Estimate Std. Error         df t value
## (Intercept)                             4.521e+14  1.657e+13  7.949e+02  27.281
## Time_PointPost                          1.085e+13  2.151e+13  3.646e+06   0.504
## Time_PointFollow-up                    -1.180e+13  2.309e+13  1.196e+05  -0.511
## GroupsExperimental                      7.453e+12  2.270e+13  7.949e+02   0.328
## Time_PointPost:GroupsExperimental      -6.715e+13  2.967e+13  1.328e+06  -2.263
## Time_PointFollow-up:GroupsExperimental -5.546e+13  3.146e+13  1.271e+05  -1.763
##                                        Pr(>|t|)    
## (Intercept)                              <2e-16 ***
## Time_PointPost                           0.6140    
## Time_PointFollow-up                      0.6092    
## GroupsExperimental                       0.7428    
## Time_PointPost:GroupsExperimental        0.0236 *  
## Time_PointFollow-up:GroupsExperimental   0.0779 .  
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Correlation of Fixed Effects:
##             (Intr) Tm_PnP Tm_PF- GrpsEx T_PP:G
## Time_PntPst -0.635                            
## Tm_PntFllw- -0.592  0.459                     
## GrpsExprmnt -0.730  0.464  0.432              
## Tm_PntPs:GE  0.460 -0.725 -0.333 -0.631       
## Tm_PntF-:GE  0.434 -0.337 -0.734 -0.595  0.460
# Pengujian fixed effect Emotional Well-Being

anova_ewb <- anova(model_ewb)

anova_ewb
## Type III Analysis of Variance Table with Satterthwaite's method
##                       Sum Sq    Mean Sq NumDF  DenDF F value   Pr(>F)    
## Time_Point        4.9583e+29 2.4791e+29     2 126663 11.8314 7.28e-06 ***
## Groups            1.7162e+24 1.7162e+24     1    163  0.0001   0.9928    
## Time_Point:Groups 7.7027e+28 3.8513e+28     2 126663  1.8380   0.1591    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
summary(model_ewb)
## Linear mixed model fit by maximum likelihood . t-tests use Satterthwaite's
##   method [lmerModLmerTest]
## Formula: Emot_Well_T ~ Time_Point * Groups + (1 | id)
##    Data: Dataset_longitudinal_GLS
## 
##       AIC       BIC    logLik -2*log(L)  df.resid 
##   32220.9   32254.2  -16102.5   32204.9       464 
## 
## Scaled residuals: 
##     Min      1Q  Median      3Q     Max 
## -3.1293 -0.2635  0.2475  0.5645  1.6445 
## 
## Random effects:
##  Groups   Name        Variance  Std.Dev. 
##  id       (Intercept) 4.902e+27 7.001e+13
##  Residual             2.095e+28 1.448e+14
## Number of obs: 472, groups:  id, 181
## 
## Fixed effects:
##                                          Estimate Std. Error         df t value
## (Intercept)                             4.642e+14  1.764e+13  6.791e+02  26.316
## Time_PointPost                          6.242e+12  2.268e+13  9.225e+05   0.275
## Time_PointFollow-up                     5.170e+13  2.448e+13  8.447e+04   2.111
## GroupsExperimental                     -3.534e+13  2.421e+13  6.784e+02  -1.460
## Time_PointPost:GroupsExperimental       4.523e+13  3.164e+13  3.048e+05   1.430
## Time_PointFollow-up:GroupsExperimental  6.033e+13  3.378e+13  7.074e+04   1.786
##                                        Pr(>|t|)    
## (Intercept)                              <2e-16 ***
## Time_PointPost                           0.7832    
## Time_PointFollow-up                      0.0347 *  
## GroupsExperimental                       0.1447    
## Time_PointPost:GroupsExperimental        0.1528    
## Time_PointFollow-up:GroupsExperimental   0.0741 .  
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Correlation of Fixed Effects:
##             (Intr) Tm_PnP Tm_PF- GrpsEx T_PP:G
## Time_PntPst -0.634                            
## Tm_PntFllw- -0.586  0.459                     
## GrpsExprmnt -0.729  0.462  0.427              
## Tm_PntPs:GE  0.454 -0.717 -0.329 -0.623       
## Tm_PntF-:GE  0.425 -0.332 -0.725 -0.583  0.452
# Menyimpan hasil pengujian fixed effect

write.csv(
  as.data.frame(anova_pf),
  "Pengujian_Fixed_Effect_Psychological_Flexibility.csv",
  row.names = TRUE
)

write.csv(
  as.data.frame(anova_ewb),
  "Pengujian_Fixed_Effect_Emotional_Well_Being.csv",
  row.names = TRUE
)


# Pengujian interaksi Time dan Group

grep(
  "Time_Point.*:Groups",
  rownames(coef_pf),
  value = TRUE
)
## [1] "Time_PointPost:GroupsExperimental"     
## [2] "Time_PointFollow-up:GroupsExperimental"
grep(
  "Time_Point.*:Groups",
  rownames(coef_ewb),
  value = TRUE
)
## [1] "Time_PointPost:GroupsExperimental"     
## [2] "Time_PointFollow-up:GroupsExperimental"
# Model tanpa interaksi Psychological Flexibility

model_pf_no_interaction <- lmer(
  Psych_Infle_T ~ Time_Point + Groups + (1 | id),
  data = Dataset_longitudinal_GLS,
  REML = FALSE
)

anova(
  model_pf_no_interaction,
  model_pf
)
## Data: Dataset_longitudinal_GLS
## Models:
## model_pf_no_interaction: Psych_Infle_T ~ Time_Point + Groups + (1 | id)
## model_pf: Psych_Infle_T ~ Time_Point * Groups + (1 | id)
##                         npar   AIC   BIC logLik -2*log(L)  Chisq Df Pr(>Chisq)
## model_pf_no_interaction    6 33743 33768 -16866     33731                     
## model_pf                   8 33741 33775 -16863     33725 5.7338  2    0.05688
##                          
## model_pf_no_interaction  
## model_pf                .
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
# Model tanpa interaksi Emotional Well-Being

model_ewb_no_interaction <- lmer(
  Emot_Well_T ~ Time_Point + Groups + (1 | id),
  data = Dataset_longitudinal_GLS,
  REML = FALSE
)

anova(
  model_ewb_no_interaction,
  model_ewb
)
## Data: Dataset_longitudinal_GLS
## Models:
## model_ewb_no_interaction: Emot_Well_T ~ Time_Point + Groups + (1 | id)
## model_ewb: Emot_Well_T ~ Time_Point * Groups + (1 | id)
##                          npar   AIC   BIC logLik -2*log(L)  Chisq Df Pr(>Chisq)
## model_ewb_no_interaction    6 32221 32246 -16104     32209                     
## model_ewb                   8 32221 32254 -16102     32205 3.6607  2     0.1604