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Gentry, Marcia – Journal of Advanced Academics, 2016
In this commentary on "Does Sorting Students Improve Scores? An Analysis of Class Composition" (Collins and Gan 2013), the author discusses the findings in Collins and Gan's study on grouping to provide appropriate-level instruction to promote students' academic growth. This commentary critiques the credibility and validity of the…
Descriptors: Scores, Academic Achievement, Credibility, Validity
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Dimeglio, Isabelle; Janmaat, Jan Germen; Mehaut, Philippe – Social Indicators Research, 2013
The aim of this paper is to test the connections between the indicators used in the literature on social cohesion, which usually reflect "general" values or behaviours, and indicators specific to a particular space, namely the labour market. A key question is the stability of the social cohesion's indicators when moving from a societal…
Descriptors: Homogeneous Grouping, Foreign Countries, Labor Market, Correlation
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Seco, Guillermo Vallejo; Gras, Jaime Arnau; Garcia, Manuel Ato – Educational and Psychological Measurement, 2007
This study evaluated the robustness of two recent methods for analyzing multivariate repeated measures when the assumptions of covariance homogeneity and multivariate normality are violated. Specifically, the authors' work compares the performance of the modified Brown-Forsythe (MBF) procedure and the mixed-model procedure adjusted by the…
Descriptors: Sample Size, Robustness (Statistics), Monte Carlo Methods, Multivariate Analysis