Subjects were pretested and then randomly assigned to a verbal treatment or a figural treatment for a programed lesson on the integers modulo 7. The expected interactions among treatment success and cognitive abilities were not observed. The authors suggest further study. (SD)

Subjects were randomly assigned to a deductively structured verbal-symbolic-numeric treatment or an inductively structured verbal-spatial-numeric treatment for a unit on quadratic inequalities. Success on the deductive symbolic approach was associated with general reasoning ability; success on the inductive spatial approach was associated with…

The relationship between a cognitive style variable, field-dependence-independence, and instructional treatments that differed in two dimensions of discovery learning, level of guidance and level of abstraction, was investigated with 116 prospective elementary teachers. As predicted, field-independent students did better with minimum guidance,…

Eight problems in each of three formats were administered to 854 students in grades three through seven. Readers of high ability chose correct operations more often than low-ability readers. The drawn format was easier than the other two formats; its advantage was greater for low-ability readers than high-ability readers. (MNS)

In this study with 132 secondary school geometry students, three significant aptitude by treatment interactions were found. Students with high reasoning scores and those with high processing scores profited more from the transformational treatment on point and line symmetry. (MP)

One group of elementary education majors received an algebraic instructional treatment of a unit on linear absolute value equations while another received a geometric treatment. The hypothesis of an aptitude-by-treatment interaction was statistically confirmed. (MN)

Ninth-grade students were given a battery of cognitive aptitude tests and randomly assigned to verbal or figural mathematics instruction. Learning and retention were correlated with the aptitude measures and other fixed variables; regression analysis indicated the importance of memory, semantic factors, and sex difference. (SD)

Subjects were randomly assigned to two methods of instruction for a unit on quadratic inequalities. It was expected that spatial visualization scores would predict transfer from the analytic approach while general reasoning would predict transfer from the graphical approach. No interaction was found. (Author/SD)

No significant interaction was found between two instructional treatments and two aptitude variables in this study, but they did find four disordinal interactions, two using one predictor variable and two using two predictor variables. (MN)

The interactive effects between mathematical achievement and manipulative v symbolic instruction with junior high school students are examined in this report. Low-achieving students benefited more from a manipulative approach to logical connectives, whereas high achieving students found the symbolic approach to be more effective. (MP)

This aptitude-treatment interaction study explored the relationship between cognitive restructuring ability and treatments varying in the amounts of teacher guidance on tasks with fractions. An interaction was found between cognitive restructuring ability and levels of teacher guidance for items having continuous perceptual distracters. (MNS)

Investigated the effects of individual difference variables of field dependence/independence and spatial visualization ability on the performance of college students in three modes. The extent to which four variables account for variability in retention test performance on certain tasks was also viewed. (MP)