Title

Point-of-time effects across the semester: Is there a sampling bias?

Authors

Authors

A. Y. Wang;F. G. Jentsch

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Psychol.

Keywords

PSYCHOLOGY SUBJECT POOL; PERFORMANCE; VALIDITY; UNIVERSITIES; COGNITION; SCALE; NEED; Psychology, Multidisciplinary

Abstract

Prior research has yielded inconsistent findings regarding differences between university participant-pool students who volunteer early or late in the semester. This issue is important because external validity may be threatened when researchers take samples from university participant pools. In the present study, point-of-time effects were investigated via measures of procrastination, motivation, locus of control, and cued recall. The findings suggest that slight differences exist between early and late volunteers on some measures of personality and motivation; however, there were no point-of-time effects for cued recall. The data indicate that if performance-based measures (e.g., cued recall) are under investigation, potential differences in personality and motivation may be attenuated because of the demand characteristics of laboratory settings.

Journal Title

Journal of Psychology

Volume

132

Issue/Number

2

Publication Date

1-1-1998

Document Type

Article; Proceedings Paper

Language

English

First Page

211

Last Page

219

WOS Identifier

WOS:000072418700007

ISSN

0022-3980

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