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Direct linkGemici, Sinan; Rojewski, Jay W.; Lee, In Heok – Career and Technical Education Research, 2012
Most quantitative analyses in workforce education are affected by missing data. Traditional approaches to remedy missing data problems often result in reduced statistical power and biased parameter estimates due to systematic differences between missing and observed values. This article examines the treatment of missing data in pertinent…
Descriptors: Research Methodology, Statistical Analysis, Data Collection, Pattern Recognition
Download full textBauman, Sheri; Steiner, Robert; Lopez, Francesca – Journal of School Counseling, 2007
A three-page questionnaire was modified to a one-page format. Questionnaires were administered in classroom groups to 300 middle school students. Classrooms were randomly divided into two groups, with one group receiving the original three-page format and the other receiving a single-page version of the same questionnaire. The visual layout of the…
Descriptors: Questionnaires, Differences, Layout (Publications), Middle School Students
