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Zvoch, Keith; Letourneau, Lawrence E.; Parker, Robert P. – American Journal of Evaluation, 2007
The evaluation of an intervention delivered across multiple treatment sites presents a unique opportunity for evaluators to gauge the manner and degree to which the "impact" of treatment varies across implementation conditions and different target populations. However, the availability of implementation data for each treatment site, while…
Descriptors: Program Implementation, Evaluation Methods, Models, Instructional Effectiveness
Marsh, Herbert W.; Grayson, David – 1993
The multitrait-multimethod (MTMM) paradigm is used widely to assess construct validity, but D. A. Kenny and D. A. Kashy (1992) lament that even after 30 years we still do not know how to analyze MTMM data. The Composite Direct Product (CDP) model has recently attracted considerable attention. Its strengths and weaknesses are evaluated, and a…
Descriptors: Computer Simulation, Construct Validity, Foreign Countries, Formative Evaluation