A comprehensive approach to the interpretation of difference scores.
A comprehensive approach to the interpretation of difference scores is presented. Formulas for the test of statistical significance between two test scores, computed by a confidence interval, and for the calculation of the probabilities for the power of the statistical test, underinterpretation, overinterpretation, and misinterpretation are provided. Definitions and examples of their use in score interpretation are provided.
Charter
Richard A
RA
California State University at Long Beach, Long Beach, California, USA. richc446@aol.com
Feldt
Leonard S
LS
D016001:Confidence Intervals; D003627:Data Interpretation, Statistical; D005260:Female; D006801:Humans; D008297:Male; D015233:Models, Statistical; D009483:Neuropsychological Tests; D011336:Probability