Psychometric Properties of the Pyramids and Palm Trees Test
The Pyramids and Palm Trees Test (PPT) is a nonverbal measure of semantic memory that has been frequently used in previous aphasia, agnosia, and dementia research. Very little psychometric information regarding the PPT is available. The purpose of this study was to investigate the psychometric properties of the PPT in a population of healthy college students. Results indicated that the PPT achieved poor test–retest reliability, failed to obtain adequate internal consistency, and demonstrated poor convergent validity, but showed acceptable discriminant validity. The results of this study suggest that the PPT lacks acceptable reliability and validity for use with a college student population.
Journal of Clinical and Experimental Neuropsychology
Klein, L. & Buchanan, J.A. (2009). Psychometric Properties of the Pyramids and Palm Trees Test. Journal of Clinical and Experimental Neuropsychology, 31 (7), 803-808. doi. 10.1080/13803390802508926
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Copyright © 2009 Taylor & Francis Group. Article published by Taylor & Francis Group in Journal of Clinical and ExperimentalNeuropsychology, volume 31, issue number 7, 2009, pages 803-808. Available online on September 10, 2009: