Ivaniushina, Valeria; Alexandrov, Daniil - In: Educational Studies (2013) 2, pp. 233-251
.com Analyzing the results of a survey among students in regular public schools, the study seeks to check for existence of a … socioeconomic status of families and differing from stratification patterns in foreign schools. The study compares how pro …, close friendship groups).As a result of two-stage stratified sampling, the schools involved in the study have been divided …