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Direct linkRudd, Andy; Johnson, R. Burke – Studies in Educational Evaluation, 2008
As a result of the federal No Child Left Behind Act (NCLB) of 2002, the field of education has seen a heavy emphasis on the use of "scientifically based research" for designing and testing the effectiveness of new and existing educational programs. According to NCLB, when addressing basic cause and effect questions scientifically based…
Descriptors: Quasiexperimental Design, Scientific Research, Educational Research, Federal Legislation
Peer reviewedNewfield, John – Studies in Educational Evaluation, 1980
When the basic unit being studied is a grouping of individuals, both students and items can be sampled. When this method is applied to the use of log sheets to measure fidelity of program implementation, the normal limitations of self-reporting are reduced. (BW)
Descriptors: Item Sampling, Measurement Techniques, Program Implementation, Questionnaires
Adams, Raymond J. – Studies in Educational Evaluation, 2005
Test reliability is a concept central to classical test theory and it is commonly stated as a requirement that a test attain a certain level of reliability before it be considered of sufficient quality for practical use. This article discusses the role of reliability in item response theory, and in particular the role of reliability in contexts…
Descriptors: Test Reliability, Error of Measurement, Item Sampling, Item Response Theory
