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Peer reviewedLevinson, Elizabeth J. – Child Development, 1971
Descriptors: Concept Formation, Control Groups, Definitions, Intellectual Development
Direct linkCourtney, Jude; Rose, John – Journal of Sexual Aggression, 2004
Background. A variety of research designs have been employed to explore the efficacy of the wide range of interventions for sex offenders with learning disabilities. This paper reviews these studies to consider the efficacy of such treatments. Methods. Computerized searches and less formal literature gathering led to the identification of 31…
Descriptors: Outcomes of Treatment, Control Groups, Learning Disabilities, Sexual Abuse
Download full textRubin, Donald – 1972
Matching, randomization, random sampling, and other methods of controlling extraneous variation are discussed. The purpose was to specify the benefits of randomization in estimating causal effects of treatments. It is concluded that randomization should be employed whenever possible, but the use of carefully controlled nonrandomized data to…
Descriptors: Control Groups, Definitions, Evaluation Methods, Experimental Groups
Peer reviewedFischer, Ute – Applied Psycholinguistics, 1994
Investigated the independent and interactive effects of contextual and definitional information on vocabulary learning. German students of English received either a text with unfamiliar English words or their monolingual English dictionary entries. A third group received both. Information about word context is crucial to understanding meaning. (44…
Descriptors: Context Clues, Control Groups, Data Analysis, Definitions
