- The retrospective pretest and the role of pretest information in evaluative studies.
- Psychological Reports
- Volume | Issue number
- 70 | 3
- Pages (from-to)
- Document type
- Faculty of Social and Behavioural Sciences (FMG)
- Psychology Research Institute (PsyRes)
Examined the possible role of pretest information in preventing the response-shift phenomenon. 39 university students registered for a course in group management were divided among 3 conditions: (1) an experimental group which was given pretest information about the course, (2) a control group which received no information, and (3) a waiting-list group. Contrary to expectation, the Ss' ratings were somewhat lower in the pretest-information condition. It was concluded that the pretest information provided was not effective enough. Use of a correct amount of reliable pretest information is recommended; otherwise this information may function as a minicourse in itself and thereby confound the hypothesized or expected results.
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