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Pretest-posttest designs and measurement of change

Article type: Research Article

Authors: Dimitrov, Dimiter M. | Rumrill, Jr., Phillip D.

Affiliations: 507 White Hall, College of Education, Kent State University, Kent, OH 44242-0001, USA. Tel.: +1 330 672 0582; Fax: +1 330 672 3737; E-mail: ddimitro@kent.edu.

Keywords: treatment effects, pretest-posttest designs, measurement of change

Journal: Work, vol. 20, no. 2, pp. 159-165, 2003

Received 21 March 2003
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Accepted 21 March 2003
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Published: 2003
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Abstract

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 interventions. The reliability of gain scores in pretest-posttest measurement is also discussed in the context of rehabilitation research and practice.

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