Group Effects on Individual Learning Achievement

This study focuses on the impact of the social context of a class on student behaviour, in particular, the effects of pupil-pupil interaction on learning achievement. Two major functions of reference groups are distinguished: a normative and a comparative function. The normative function deals with norm setting and enforcing norms. The comparative function is merely a standard of comparison for the individual. This study deals with the question as to what extent contextual effects at classroom level can be accounted for by these two types of reference processes. The development of mathematical achievement of some 3,600 students in Year 8 (11 or 12 years of age) in about 200 primary schools in the Netherlands was followed. Students were asked to rate their classmates on two/three-point scales: a comparative scale and a normative scale. It appears that both the comparative and the normative reference structure of classes have substantial effects on individual achievement. The effect of the normative reference group, however, is by far the strongest.