Life Science Weekly, April 24, 2007, Tuesday

Copyright 2007 Life Science Weekly via NewsRx.com & NewsRx.net

Life Science Weekly

April 24, 2007

SECTION: EXPANDED REPORTING; Pg. 3165

HEADLINE: PSYCHOLOGY;

Scientists at Cornell University publish new data on psychology

BODY:

A report, "Retesting in selection: a meta-analysis of coaching and practice effects for tests of cognitive ability," is newly published data in Journal of Applied Psychology. "Previous studies have indicated that as many as 25% to 50% of applicants in organizational and educational settings are retested with measures of cognitive ability. Researchers have shown that practice effects are found across measurement occasions such that scores improve when these applicants retest," scientists in the United States report.

"In this study, the authors used meta-analysis to summarize the results of 50 studies of practice effects for tests of cognitive ability. Results from 107 samples and 134,436 participants revealed an adjusted overall effect size of .26. Moderator analyses indicated that effects were larger when practice was accompanied by test coaching and when identical forms were used," wrote J.P. Hausknecht and colleagues, Cornell University.

The researchers concluded: "Additional research is needed to understand the impact of retesting on the validity inferences drawn from test scores."

Hausknecht and colleagues published their study in the Journal of Applied Psychology (Retesting in selection: a meta-analysis of coaching and practice effects for tests of cognitive ability. Journal of Applied Psychology, 2007;92(2):373-85).

For additional information, contact J.P. Hausknecht, Cornell University, Dept. of Human Resource Studies, Ithaca, NY 14853 USA.

The publisher's contact information for the Journal of Applied Psychology is: American Psychological Association, 750 First St. NE, Washington, DC 20002-4242, USA.

Keywords: United States, Ithaca, Psychology.

This article was prepared by Life Science Weekly editors from staff and other reports. Copyright 2007, Life Science Weekly via NewsRx.com.