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Direct linkPeterson, Christina Hamme; Gischlar, Karen L.; Peterson, N. Andrew – Journal for Specialists in Group Work, 2017
Measures that accurately capture the phenomenon are critical to research and practice in group work. The vast majority of group-related measures were developed using the reflective measurement model rooted in classical test theory (CTT). Depending on the construct definition and the measure's purpose, the reflective model may not always be the…
Descriptors: Item Response Theory, Group Activities, Test Theory, Test Items
Ferguson, Christopher J. – American Psychologist, 2013
In June 2011 the U.S. Supreme Court ruled that video games enjoy full free speech protections and that the regulation of violent game sales to minors is unconstitutional. The Supreme Court also referred to psychological research on violent video games as "unpersuasive" and noted that such research contains many methodological flaws.…
Descriptors: Video Games, Violence, Court Litigation, Federal Courts
Raju, Nambury S.; Lezotte, Daniel V.; Fearing, Benjamin K.; Oshima, T. C. – Applied Psychological Measurement, 2006
This note describes a procedure for estimating the range restriction component used in correcting correlations for unreliability and range restriction when an estimate of the reliability of a predictor is not readily available for the unrestricted sample. This procedure is illustrated with a few examples. (Contains 1 table.)
Descriptors: Correlation, Reliability, Predictor Variables, Error Correction
