This note suggests that it is sometimes possible to apply true experimental designs in field
settings by takmg advantage of the constraints under which programs or experimental
treatments must operate. In a research study requiring classical treatment and control
groups, practical methods for implementing true experimental procedures in public
schools had to be devised and applied. These solutions to a problem often encountered by
evaluators are presented here.
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References
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Alderman, D.L., and D.E. Powers (1979) "The effects of special preparation on SAT-Verbal scores." Princeton, NJ: Educational Testing Service.
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Campbell, D.T. and J.C. Stanley (1966) Experimental and quasi-experimental designs for research. ChicagoRand McNally.
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Cochran, W.G. and G.M. Cox (1950) Experimental designs. New York : John Wiley.
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Glass, G.V. and J.C. Stanley (1970) Statistical methods in education and psychology . Englewood Cliffs, NJ:Prentice-Hall .
