Coolican, Hugh
Research methods and statistics in psychology
Hodder & Stoughton, 2009
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Fisher, Ronald A.
Statistics methods for research workers
Oliver and Boyd, 1950
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Methods of research in social psychology
Elliot Aronson...[et al.]
McGraw-Hill , 1990
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Shaughnessy, John J.
Research methods in psychology
McGraw-Hill, 1997
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Shaughnessy, John J.
Research methods in psychology
McGraw-Hill, 2003
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