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Distribution of Students by Treatment at
REVIEW OF THE LITERATURE
DESIGN OF THE STUDY
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01 level 05 level Significant 25 Three-Way ANOVA 91 or Higher ability to solve Adjusted for Pretest analysis of covariance analysis of variance attitude toward mathematics blocking variable calculator groups Calculator x Skills Computational Skills Test criterion variable CSTI-I CSTI-II eighth grade F ratio Freedom Squares Grade Eight Analysis Groups and High Hawthorne Effect High and Low indicates interaction junior high school Low Ability Groups Low Achievement Groups mastery of mathematical mathe mathematical achievement mathematical concepts matics Measuring Computation Skill measuring instruments MEASURING MATHEMATICAL metic MMAI ninth grade null hypotheses one-way analysis One-Way ANOVA Posttest Means Adjusted Posttest Measuring Computation POSTTEST SCORES Pretest Means ratios associated seventh grade significant differences Skill in Grade skills kit groups slow learners solve mathematical problems Stanford Arithmetic Tests STIN-3 and STAV-3 SUMMARY OF MEANS T4 group test scores Three-Way Analysis Total 40 Two-Way ANOVA Variance of Posttest Variation df SS