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Negative / Null Result Report

Class Composition Effects in Achievement and Interest and the Role of the Learning Environment Revisited: A Conceptual Replication and Extension of Lavrijsen et al. (2022)

Kopatz M; Wagner W; Neuendorf C; Trautwein U; Nagengast B; Bardach L · 2026 · Preprint

WASTE classifies this as Negative / Null Result Report · AI classification, approximate

The study found no significant effect — useful as a negative control or null benchmark for your own design.

Abstract (excerpt)

Class composition is a key contextual factor in students’ academic development. Prior research has mainly focused on class mean achievement, yet less is known about other composition characteristics, possible differences for students with…

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Metadata source: Europe PMC · DOI 10.31234/osf.io/zkg9r_v1