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1 , : C a m p b e l l D. T. Quasi-Experimental Desings. In: Social Experimentation: A method for planning and evaluating social innovations. Ed. by H. W. Riecken and R. F. Boruch. N. Y., Academic Press, 1974. Academic Press, Inc., 1974, C a m p b e l l D. T. Reforms as Experiments. In: Reading in evaluation research. Ed. by F. G. C a r o, N Y., Russell Sage Foundation, 1977. Sage Publications, Inc, 1977. . .
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1 ., , : T h i s t l e t h w a i t e D. L. and C a m p b e l l D. T. Regression-discontinuity analysis: An alternative to the ex post facto experiment. Journal of Educational Psychology, I960, v. 51, p. 309317: C a m p b e l l D. T. Reforms as experiments. Amer. Psychologist. 1969, v. 24, p. 409429; G o l d b e r g e r A. S. Selection bias in evaluating treatment effects: Some formal illustrations. Madison, Institute for Research on Poverty, Univ. ofWisconsin. 1972.
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