Analysis

Author

Aashna

Warning: package 'ggplot2' was built under R version 4.4.1
Warning: package 'brms' was built under R version 4.4.1
Warning: package 'tidybayes' was built under R version 4.4.1
 Family: gaussian 
  Links: mu = identity; sigma = identity 
Formula: g4math ~ kinder 
   Data: x (Number of observations: 1582) 
  Draws: 4 chains, each with iter = 2000; warmup = 1000; thin = 1;
         total post-warmup draws = 4000

Regression Coefficients:
            Estimate Est.Error l-95% CI u-95% CI Rhat Bulk_ESS Tail_ESS
Intercept     709.54      1.42   706.75   712.35 1.00     4342     3068
kindersmall    -0.34      2.14    -4.49     3.85 1.00     4136     2939

Further Distributional Parameters:
      Estimate Est.Error l-95% CI u-95% CI Rhat Bulk_ESS Tail_ESS
sigma    42.24      0.75    40.81    43.76 1.00     5364     3160

Draws were sampled using sampling(NUTS). For each parameter, Bulk_ESS
and Tail_ESS are effective sample size measures, and Rhat is the potential
scale reduction factor on split chains (at convergence, Rhat = 1).