Students often misinterpret the equal sign (=) as operational instead of relational. Research indicates misinterpretation of the equal sign occurs because students receive relatively little exposure to equations that promote relational understanding of the equal sign. No study, however, has examined effects of nonstandard equations on the equation…

This study investigated if developmental dyscalculia (DD) in children with different profiles of mathematical deficits has the same or different cognitive origins. The defective approximate number system hypothesis and the access deficit hypothesis were tested using two different groups of children with DD (11-13 years old): a group with…

This study aimed to explore the spatial numerical association of response codes (SNARC), the flanker, and the numerical distance effects in children with mathematical difficulties. From a sample of 720 third, fourth, and fifth graders, 60 children were selected and divided into the following three groups: typically developing children (TD; n =…

The purpose of this study was to compare subgroups of students with various forms of learning difficulties (< 25th percentile) on cognitive and mathematics characteristics. Students with mathematics difficulty (MD, n = 105), reading difficulty (RD, n = 65), both (MDRD, n = 87), or neither (NoLD, n = 403) were evaluated on an array of cognitive…

This study investigated the relationship among working memory, processing speed, math performance, and reactivity to stress in 83 Grade 1 children. Specifically, 39 children with math disability (MD) were compared to 44 children who are typically achieving (TA) in mathematics. It is the first study to use a physiological index of stress (salivary…

Children with academic and behavioral difficulties have been found to report overly positive self-perceptions of performance in their areas of specific deficit. Researchers typically investigate self-perceptions in reference to both actual performance and ratings by teachers, peers, and parents. However, few studies have investigated whether or…

Despite the emerging evidence base on response to intervention, there is limited research regarding how to effectively use progress-monitoring data to adjust instruction for students in Tier 2 intervention. In this study, we analyzed extant data from a series of randomized experimental studies of a kindergarten supplemental reading intervention to…

This exploratory study examined the influences of student, teacher, and setting characteristics on kindergarteners' early reading outcomes and investigated whether those relations were moderated by type of intervention. Participants included 206 kindergarteners identified as at risk for reading difficulties and randomly assigned to one of two…

The present study evaluated the stability of math learning difficulties over a 2-year period and investigated several factors that might influence this stability (categorical vs. continuous change, liberal vs. conservative cut point, broad vs. specific math assessment); the prediction of math performance over time and by performance level was also…

When temperament, self-concept, and locus of control were compared among learning-disabled (N=38) third- through sixth- graders and matched peers, a multivariate difference was demonstrated with specific univariate effects in task orientation and social flexibility, partially supporting the characterization of learning-disabled students as…

This study, with 38 9-year-old poor readers and 40 reading age-matched normally achieving readers, examined qualitative differences in poor readers relative to normally achieving readers of the same reading level. Results suggest that poor readers have worse grapheme phoneme conversion skills and greater reluctance to relinquish the lexical route…

Characteristics of 718 students labeled as learning disabled before implementation of Indiana's statewide guidelines were compared with characteristics of 790 students identified after guideline implementation. After implementation, students identified had more severe academic problems and severe ability/achievement discrepancy, though one-third…

This research review identifies similarities in skill acquisition across the domains of reading and math disabilities, specifically addressing the sequence of skill development and the theoretical question of whether the disabilities reflect delays or deficits in cognitive development. The paper discusses the nature of differences between learners…

A study examined the differences between elementary school students with learning disabilities and other high- and low-achieving students on three social dimensions: sociometric status, behavior as rated by teachers, and self-ratings of social competence. Results indicated children with learning disabilities may be at higher risk socially than the…

A comparison of 46 college students with learning disabilities (LD) who received permission to waive a foreign language (FL) requirement with 21 students with LD who fulfilled the requirement found that more students who had petitioned had a 1.0 standard deviation discrepancy between IQ and achievement and were referred only for FL learning…