The purpose of this study was to apply a random item mixture nominal item response model (RIM-MixNRM) for investigating instruction effects. The host study design was a pre-test-and-post-test, school-based cluster randomized trial. A RIM-MixNRM was used to identify students' error patterns in mathematics at the pre-test and the post-test.…

In a replication of an earlier study, the spellings produced by 47 learning disabled (LD) students (ages 7 to 11 years) were classified in terms of a hierarchy of spelling strategies presumed to result in conventional spelling. The developmental trends for the spelling strategies used by the LD Ss were compared to the trends previously observed…

The study investigated whether the pre-arrangement of math facts in spaced repetitions redundancy would increase the acquisition rate of a second grader with poor mathematics achievement. Baseline data were provided by observation of in-class math performance of addition sums zero through 18. In the experimental phase, worksheet problems were…

The paper addresses provisions for a diagnostically based remedial component for children manifesting clear and specific learning disabilities in mathematics. A model, the interactive unit, upon which a sequential program that systematically minimizes learning disabilities on mathematics performance is introduced. It is explained that the…

This study compared the comprehension monitoring skills of learning disabled (LD) and normal elementary school children. Comprehension monitoring, the ability to evaluate one's level of understanding of incoming messages, was assessed using two separate tasks. In the first (referential task), the child took the role of the listener in a…

A review of the relevant literature reveals that reading reversals, whether in sequence or orientation, comprise a very small proportion of the total errors made by even poor readers. Young children tend to make more reversals, yet this tendency generally disappears with age. Top-down theorists feel that the reversal tendency of young children is…

The paper describes two experiments using the Computational Mathematics Monitoring System (CMMS) with mildly handicapped (educable mentally retarded-EMR and learning disabled-LD) students. In the first study, data is presented on the summative evaluation of the CMMS with 19 Ss. It is explained that evaluation results do not provide clear-cut…

Despite the repeated adage that "no two LD (learning disabled) students are alike, it is not only possible but important to focus on the most common errors of LD college writers in order to learn how best to serve these students. There are in fact two main categories of these students: severely learning disabled and classically learning…

Although many common problem-solving errors within the realm of school mathematics have been previously identified, a compilation of such errors is not readily available within learning disabilities textbooks, mathematics education texts, or teacher's manuals for school mathematics texts. Using data on error frequencies drawn from both the Fourth…