Titlebook: Designing Randomised Trials in Health, Education and the Social Sciences; An Introduction David J. Torgerson,Carole J. Torgerson Book 2008

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Unequal Randomisation,able to allocate more participants to one trial arm compared with the other, i.e. to use unequal allocation. The ratio of group size can be as large as is desired; however, generally it does not exceed 3:1 and more commonly it is 2:1 or 3:2.

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affect

Neuroanatomy and Cortical LandmarksThe problems of using pre- and post-test designs have been recognised by researchers from different disciplines for many years. The need for a concurrent control group has been recognised for at least 150 to 200 years (Chalmers, 2001).

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Melodrama

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Jean M. Bidlack,Amy L. ParkhillThe house of social science research is sadly dilapidated. It is strewn among the scree of a hundred journals and lies about in the unsightly rubble of a million dissertations. Even if it cannot be built into a science, the rubble ought to be sifted and culled for whatever consistency there is in it. (Glass et al., 1981)

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History of Controlled Trials,The problems of using pre- and post-test designs have been recognised by researchers from different disciplines for many years. The need for a concurrent control group has been recognised for at least 150 to 200 years (Chalmers, 2001).

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