Determining random responding for the category, speech-sounds perception, and Seashore Rhythm tests.
A formula is presented for determining if scores from the Category, Speech-Sounds Perception, and Seashore Rhythm tests are significantly different from random responding. Confidence intervals for random responding are also presented. Results of published studies involving normative and non-normal subjects are reviewed, and the percentage of subjects responding in the random range are presented. Normative subjects' scores on the Category and Speech-Sounds Perception tests do not fall into the random range, but high percentages of their Seashore Rhythm Test scores do fall into the random range.
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Department of Veterans Affairs Medical Center, Long Beach, CA 90822.
D001925:Brain Damage, Chronic / Q000175:diagnosis / Q000523:psychology; D016001:Confidence Intervals; D006801:Humans; D008306:Malingering / Q000175:diagnosis / Q000523:psychology; D009483:Neuropsychological Tests / Q000706:statistics & numerical data*; D010700:Phonetics; D011594:Psychometrics; D012016:Reference Values; D015203:Reproducibility of Results; D013067:Speech Perception