@misc{Grygiel_Paweł_The,
 author={Grygiel, Paweł},
 howpublished={online},
 publisher={Educational Research Institute},
 language={eng},
 type={article},
 title={The dynamics of perception of social integration in primary school. The latent growth curve model},
 keywords={sociology of education, latent growth curve, longitudinal bifactor model, relationships with classroom peers, a feeling of social integration, sociometric network, developmental changes},
}