Canadian Forces Aptitude Test – Repeated Assessment and Practice Effect

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Authors
  1. Skomorovsky, A.
Corporate Authors
Director General Military Personnel Research & Analysis, Ottawa ONT (CAN)
Abstract
The Canadian Forces Aptitude Test (CFAT) retest policy required by Personnel Psychology Directive (PPD) 203 was changed on January 2007. Specifically, the length of the test-retest interval following the initial assessment was reduced from three months to seven days. Previous research suggests that when the length of the test-retest interval is short, an increase in test score on retest may occur due to criterion-unrelated variance (i.e., practice effect). This study examines the impact of reducing the length of the test-retest interval to seven days. Results demonstrate a significant increase in CFAT scores seven days after the initial assessment, which is greater than the increase occurring three months following the initial assessment. It is recommended that a minimum three-month period be set between initial selection testing and retest.

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Report Number
DGMPRA-TM-2009-003 — Technical Memorandum
Date of publication
01 May 2009
Number of Pages
36
DSTKIM No
CA032343
CANDIS No
531586
Format(s):
Electronic Document(PDF)

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