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Data Quality and Norms in International Studies.
Peer reviewed Peer reviewed
Wolf, Richard M. – Measurement and Evaluation in Counseling and Development, 1993
Addresses two vital issues in international studies of educational achievement: the quality of data obtained from participating countries and the interpretation of those data. Contends that examples of problems in item development for international studies are related to the quality of the data and norms used in interpretation. (Author/NB)
Descriptors: Academic Achievement, Cross Cultural Studies, Data, Norms
Methods for Modeling Ordinal Outcome Variables.
Peer reviewed Peer reviewed
O'Connell, Ann Aileen – Measurement and Evaluation in Counseling and Development, 2000
Compares approaches to modeling ordinal outcome variables, including assumptions, interpretations, and limitations. Explores how the multiple regression approach with ordinal level data can compromise the understanding of the effects of the independent variables and of the ordinal level response. Provides applications with data from a multisite…
Descriptors: Models, Multiple Regression Analysis, Predictor Variables, Research Methodology
A Review of Procedural and Statistical Methods for Handling Attrition and Missing Data in Clinical Research.
Peer reviewed Peer reviewed
Mason, Michael J. – Measurement and Evaluation in Counseling and Development, 1999
Presents procedures for reducing attrition in clinical research and provides a case study for examination by researchers. Includes lists of preventative strategies and statistical methodologies to reduce attrition and bias. Argues that early planning for attrition by adjusting sample sizes is a scientifically sound approach to clinical research…
Descriptors: Attrition (Research Studies), Research Methodology, Research Problems, Statistical Analysis