Gravetter, Frederick J.
Research methods for the behavioral sciences
CT Cengage Learning, 2016
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Gravetter, Frederick J.
Research methods for the behavioral sciences
Cengage, 2018
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Edwards, Allen L.
Statistical methods for the behavioral sciences
Holt, Rinehart and Winston, 1966
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Leavitt, Fred
Research methods for behavioral scientists
C. Brown Publishers , 1991
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Cozby, Paul C.
Methods in behavioral research
McGraw-Hill, 2012
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