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Ruiz-Primo, Maria Araceli; Wiley, Edward; Rosenquist, Anders; Schultz, Susan; Shavelson, Richard J.; Hamilton, Laura; Klein, Steve – 1998
This study explored the sensitivity of a multilevel approach in detecting outcomes of a hands-on science program, exploring whether the instruction of a hands-on unit had any impact on students' performance and whether the estimated magnitude of the impact was different according to the proximity of the assessments to the unit taught. Also studied…
Descriptors: Educational Change, Elementary School Students, Grade 5, Hands on Science