This dataset is an extract taken from a larger study of examination results conducted by the Student Performance Analysis Section of the Educational Research Institute (Szaleniec et al., 2013) on random sample of Polish schools. The dataset consists of two samples out of eleven given in the oryginal research.
A data frame with 1705 observations on the following 5 variables.
x,y,z numeric vectors of exam scores.
Sample factor vector inidcating one of the two samples.
School factor vector indicating one of the randomly sampled Schools.
Szaleniec, H., Grudniewska, M., Kondratek, B., Kulon, F., Pokropek, A., Stożek, E. & Żółtak, M. (2013). Analiza Porównawcza Wyników Egzaminów Zewnętrznych - Sprawdzian w Szóstej Klasie Szkoły Podstawowej i Egzamin Gimnazjalny. Educational Research Institute. http://ibe.edu.pl/
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