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Pretest-posttest designs and measurement of change

Work, 2003
The article examines issues involved in comparing groups and measuring change with pretest and posttest data. Different pretest-posttest designs are presented in a manner that can help rehabilitation professionals to better understand and determine effects resulting from selected
Phillip D Rumrill
exaly   +3 more sources

Retrospective Pretest-Posttest Analysis versus Traditional Pretest-Posttest Analysis

Psychological Reports, 1985
Traditional pretest-posttest comparisons of self-report data are distorted by response-shift bias. Administration of a retrospective pretest in lieu of the traditional pretest eliminates a form of response-shift bias which distorts the comparability of pretest-posttest measurements.
Thomas Nicholson   +2 more
openaire   +1 more source

Estimating Difference-Score Reliability in Pretest–Posttest Settings

Journal of Educational and Behavioral Statistics, 2021
Clinical, medical, and health psychologists use difference scores obtained from pretest–posttest designs employing the same test to assess intraindividual change possibly caused by an intervention addressing, for example, anxiety, depression, eating disorder, or addiction.
Zhengguo Gu   +2 more
openaire   +2 more sources

Comparative Analyses of Pretest-Posttest Research Designs

American Statistician, 1980
Abstract Two common methods of analyzing data from a two-group pretest-posttest research design are (a) two-sample t test on the difference score between pretest and posttest and (b) repeated-measures/split-plot analysis of variance. The repeated-measures/split-plot analysis subsumes the t test analysis, although the former requires more assumptions to
Michael H Kutner
exaly   +2 more sources

The retrospective pretest–posttest design redux: On its validity as an alternative to traditional pretest–posttest measurement

International Journal of Behavioral Development, 2019
We revisit the merits of the retrospective pretest–posttest (RPP) design for repeated-measures research. The underutilized RPP method asks respondents to rate survey items twice during the same posttest measurement occasion from two specific frames of reference: “now” and “then.” Individuals first report their current attitudes or beliefs following a ...
Todd D. Little   +6 more
openaire   +2 more sources

An Artifact in Pretest-Posttest Designs

Evaluation Review, 1980
A marked decrease in arrest rates-up to 70%-was noted in the evaluation of a juve nile corrections program. This so-called "suppression effect" has been widely publicized as proof of the effectiveness of correctional intervention. In this article we show that the sup pression effect can easily be explained as a statistical artifact, regression to the ...
Michael D. Maltz   +3 more
openaire   +1 more source

Pretesting effects in retrospective pretest-posttest designs.

Journal of Applied Psychology, 1989
Two studies evaluated communication skills training by using a pretest-posttest design, including retrospective pretest ratings, to control for response shift bias. A response shift is a change in a subject's internal standard for determining his or her level of functioning on a given dimension. In Exp 1, Ss were 37 hospital employees.
Sprangers, M., Hoogstraten, J.
openaire   +2 more sources

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