Introductory statistics for the behavioral sciences1971Joan Welkowitz, Barry H. Cohen, Robert B. Ewen
Cover unavailableIntroductory Statistics for the Behavioral Sciences, Sixth Edition with SPSS 15. 0 Set2008Joan Welkowitz
Cover unavailableIntroductory Statistics for the Behavioral Sciences 6E with SPSS Student Version 18. 0 Set2009Joan Welkowitz
Answer key for the Study guide to accompany Introductory statistics for the behavioral sciences by Joan Welkowitz, Robert B. Ewen, and Jacob Cohen1998Joan Welkowitz
Cover unavailableStudy Guide to Accompany Introductory Statistics1999Robert B. Ewen, Joan Welkowitz, Jacob Cohen
