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Peer reviewedPorter, Andrew C.; And Others – American Educational Research Journal, 1978
The estimation of the "size of effect" of educational programs is a difficult problem in program evaluation. It is argued that the intentions of the program and the nature of the measures must be known in order to estimate program effects. (JKS)
Descriptors: Data Analysis, Educational Assessment, Instructional Programs, Measurement Objectives
Download full textEdyburn, Dave L.; Smith, Roger O. – Assistive Technology Outcomes and Benefits, 2004
The topic of assistive technology (AT) outcomes has only recently received attention in the professional literature. As a result, there is a considerable void in the profession's ability to address contemporary questions about the value and use of AT. The purpose of this article is to highlight the theory, development, and research efforts of the…
Descriptors: Disabilities, Educational Technology, Assistive Technology, Research and Development
