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Abstract
Many students with specific learning disabilities (LD) exhibit reading difficulties that interfere with their performance on “high-stakes” standardized tests with math word problems. Therefore, it is important to identify accommodations that will lead to valid test scores. Audio presentation for math word problems is intended to remove the effects of a disability in reading.
One purpose of the study was to conduct an empirical investigation of the effects of audiocassette presentation by comparing the performance of students with LD and students from general education (GE). Another was to investigate the relationship, if any, between the level of knowledge of mathematics vocabulary and the benefit of audiocassette presentation for the students with LD. Finally, the study sought to extend the current research base to students in middle school.
Twenty-four students with LD and 24 from GE were tested with parallel forms of the Math section of the Iowa Test of Basic Skills. Half of each group tested with form K under standard administration and received audiocassette presentation for form L. The other half of each group was tested with form L under standard administration and audiocassette presentation for form K. Finally, the Vocabulary subtest from the Test of Mathematical Abilities, 2nd edition (TOMA-2) was administered.
Separate paired t tests were performed for the GE group and for the group with LD. The performance of the two groups was then compared with repeated measures analyses. No statistically significant differences were found, which was attributed, in part, to small sample size. Minimal change in the mean performance of either group occurred after audiocassette presentation for Math Concepts. The group mean for LD on Problem Solving improved slightly with the accommodation.
Repeated measures analyses showed no significant difference in performance between students with “high” vs. “low” levels of math vocabulary. A floor effect, along with the students' level of academic language proficiency, may have affected the results. Some students improved their scores with audio presentation, but others scored lower. This reinforces the need to base the use of any test accommodation on individual need, not disability label or other factors.
