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The Slope Test: Applications in Formative Evaluation.
Peer reviewed Peer reviewed
Baggaley, Jon; Brauer, Aaron-Henry – Canadian Journal of Educational Communication, 1989
Discusses problems with formative evaluation of educational materials and examines the slope test when used in a pretest/posttest multiple group (PPMG) design to adjust posttest scores treatment interaction studies. An example is given of the utility of the slope test and analysis of covariance procedure using an educational film about AIDS. (five…
Descriptors: Acquired Immune Deficiency Syndrome, Analysis of Covariance, Aptitude Treatment Interaction, Audience Analysis