Manhattan Prep Presentation--Brett Burk--2017-07-13

Manhattan Prep

Brett Burk
2017-07-14

Getting started

R used for the load-in and analysis. All files (including this one) are on https://github.com/pagchomp/manhattanPrep

library(reshape2)
folder <- "E:\\Projects\\manhattanPrep\\"
# folder <- "C:\\Users\\bmburk\\Dropbox\\Projects\\manhattanPrep\\"
# Load in
wf <- read.csv(paste0(folder, "GMATraw.csv"), stringsAsFactors = FALSE)
ques <- read.csv(paste0(folder, "GMATrawQues.csv"), stringsAsFactors = FALSE)
names(wf)[1] <- "SID"
names(wf) <- ques[,2]

# Create df for instructors
inst.df <- data.frame(Question = ques[2:24,2])

# Get unique codes
unique.codes <- unique(c(wf$`Lead Instructor Code`, wf$`Co-Instructor Code`))
# Create avgs vector
avgs <- numeric()
# Fill inst.df
for(uc in unique.codes){
  ic <- wf[wf$`Lead Instructor Code` == uc | wf$`Co-Instructor Code` == uc,]
  inst.df <- data.frame(inst.df, Mean = round(colMeans(ic[,2:24], na.rm = T), 3))
  names(inst.df)[ncol(inst.df)] <- uc
}

# R insists on adding X to the beginning of column names
colnames(inst.df) <- gsub("^X", "",  colnames(inst.df))

# Rotate and change names
inst.df <- data.frame(t(inst.df))
names(inst.df) <- ques[2:24,2]
inst.df <- inst.df[-1,]

# 
inst.df <- data.frame(instCode = row.names(inst.df), inst.df, stringsAsFactors = F, check.names = F)

inst.df <- melt(inst.df, id.vars = "instCode")
names(inst.df) <- c("Instructor", "Questions", "Means")

# Write data frame
write.csv(inst.df, paste0(folder, "cleanedManhattan.csv"), row.names = F)

# Create mean scores df and write it
ms.df <- data.frame(Question = ques[2:24,2], Mean = colMeans(wf[,2:24], na.rm = T))
ms.df[,3] <- ms.df[,2]
ms.df[,2] <- ms.df[,1]
ms.df[,1] <- NA
ms.df <- cbind(ms.df, 'Mean')
names(ms.df) <- c("Instructor", "Questions", "Means", "Type")
write.csv(ms.df, paste0(folder, "meanScores.csv"), row.names = F)

Means exploration

How would you rate your overall learning experience with Manhattan Prep? MEAN: 3.63

1 2 3 4 NA
8 37 311 755 248

Knows [Test] content MEAN: 3.92

1 2 3 4 NA
1 3 91 1226 38

Is engaging MEAN: 3.81

1 2 3 4 NA
3 33 173 1112 38

Mean Scores for each question

Question Mean
2 How would you rate your overall learning experience with Manhattan Prep? 3.631863
3 Knows [Test] content 3.924300
4 Is engaging 3.812263
5 Communicates effectively 3.781983
6 Is approachable and friendly 3.822727
7 Is enthusiastic 3.853899
8 Cares about my success 3.613172
9 How would you rate [InstructorFirstName]'s teaching overall? 3.797880
10 Would you recommend [InstructorFirstName]? 3.786525
11 Class recordings 3.250000
12 Course slides 3.229679
13 Books 3.655970
14 Online materials 3.585403
15 Classroom is comfortable 3.286374
16 Location is accessible 3.458430
17 Overall ease of enrollment 3.697173
18 Guidance on enrollment options 3.452167




Question Mean
19 Payment & billing services 3.5847076
20 Receipt of course materials 3.6315396
21 Technical support 3.5045942
22 Timely and effective response 3.5901141
23 Professionalism and friendliness of staff 3.7018684
24 Would you recommend Manhattan [Test] to your friends? 3.7476085
25 Do you believe a dedicated corporate [Test] course for your company's employees 0.2422981
26 May we contact you to discuss arranging a dedicated corporate course at your com 0.0818260
27 Knows GMAT content(co) 3.8495575
28 Is engaging(co) 3.6747788
29 Communicates effectively(co) 3.7035398
30 Is approachable and friendly(co) 3.8185841
31 Is enthusiastic(co) 3.8163717
32 Cares about my success(co) 3.6615044
33 How would you rate [InstructorFirstName]'s teaching overall?(co) 3.7256637
34 Would you recommend [InstructorFirstName]? (co) 3.7101770

Mean Scores for each question

Question Bootcamp In-Person Course Online Course Private Tutoring Self Study Workshop
How would you rate your overal 3.76 3.63 3.62 3.50 3.62 3.70
Knows [Test] content 3.90 3.93 3.93 3.90 NA 3.84
Is engaging 3.71 3.83 3.80 3.52 NA 3.76
Communicates effectively 3.76 3.78 3.81 3.57 NA 3.76
Is approachable and friendly 3.76 3.82 3.83 3.67 NA 3.84
Is enthusiastic 3.71 3.86 3.86 3.67 NA 3.85
Cares about my success 3.38 3.61 3.65 3.38 NA 3.59
How would you rate [Instructor 3.81 3.80 3.81 3.67 NA 3.74
Would you recommend [Instructo 3.76 3.79 3.80 3.71 NA 3.72
Class recordings NA NA NA NA 3.25 NA
Course slides 3.24 3.15 3.37 3.43 3.09 3.48
Books 3.71 3.62 3.74 3.76 3.77 3.61
Online materials 3.57 3.55 3.66 3.71 3.74 3.59
Classroom is comfortable 3.29 3.29 NA NA NA NA
Location is accessible 3.43 3.46 NA NA NA NA
Overall ease of enrollment 3.90 3.70 3.69 3.57 3.64 3.68
Guidance on enrollment options 3.57 3.45 3.44 3.62 3.53 3.43




Question Bootcamp In-Person Course Online Course Private Tutoring Self Study Workshop
18 Payment & billing services 3.71 3.57 3.61 3.24 3.64 3.67
19 Receipt of course materials 3.71 3.62 3.67 3.60 3.59 3.61
20 Technical support 3.45 3.50 3.53 3.38 3.53 3.51
21 Timely and effective response 3.57 3.57 3.62 3.57 3.65 3.66
22 Professionalism and friendline 3.76 3.69 3.72 3.71 3.65 NA
23 Would you recommend Manhattan 3.81 3.74 3.76 3.76 3.74 3.75
24 Do you believe a dedicated cor 0.10 0.26 0.20 NA NA NA
25 May we contact you to discuss 0.19 0.09 0.06 NA NA NA
26 Knows GMAT content(co) 3.83 NA 3.88 NA NA 3.76
27 Is engaging(co) 3.78 NA 3.67 NA NA 3.68
28 Communicates effectively(co) 3.72 NA 3.71 NA NA 3.67
29 Is approachable and friendly(c 3.83 NA 3.83 NA NA 3.78
30 Is enthusiastic(co) 3.89 NA 3.81 NA NA 3.83
31 Cares about my success(co) 3.39 NA 3.69 NA NA 3.62
32 How would you rate [Instructor 3.72 NA 3.75 NA NA 3.66
33 Would you recommend [Instructo 3.67 NA 3.74 NA NA 3.63
34 Program Description NA NA NA NA NA NA