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CHAPTER PAGE Acknowledgments
Statement op the Problem
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A-B AND D-F A-B group ability achievement aptitude tests base form boys cent CHAPTER Chemistry Aptitude comparison composite ratings control group D-F groups decile delayed recall test Diff DIFFERENCES BETWEEN MEAN Educational Educational Psychology effective items English Aptitude English Training Experiment experimental group Form A-l Form A2 Form Blm freshmen gifted pupils girls given grade point average graduation grammar hard spots High School Survey immediate recall test indicate intelligence quotients intelligence test Iowa City Iowa High School Iowa Placement Examinations Language Aptitude marked Mdn PEMdn mean improvement method misspelled multiple coefficient multiple correlation P.E.Diff PEDiff percentage percentile rank placement test predictive power probable errors qualifying examination quartile reading comprehension RELIABILITY COEFFICIENTS scholastic School and Society second semester selection semester grades significant sorority spelling standard deviation Study and Transfer superior tion Total University of Iowa unmarked list Variable verb words