Response to intervention (RTI) has been promoted for nearly 20 years as a valid supplement to or alternative method of learning disability (LD) identification. Nevertheless, important unresolved questions remain about its role in disability identification. We had two purposes when conducting this study of 229 economically and racially diverse poor…

The purpose of this analysis was to examine achievement gaps on fractions for very-low-performing students as a function of whether they receive inclusive fraction instruction or specialized fraction intervention and with the shift to Common Core State Standards (CCSS). In three randomized control trials conducted in 3 consecutive years, 203…

The purpose of this study was to examine the cognitive and academic profiles associated with learning disability (LD) in reading comprehension, word reading, applied problems, and calculations. The goal was to assess the specificity hypothesis, in which unexpected underachievement associated with LD is represented in terms of distinctive patterns…

Developed and evaluated an explicit approach to teaching students to engage in elaborated help-giving during collaborative group work in reading. Found that grade level and treatment exerted statistically significant and practically sizable effects on the help that students provided their peers. (Author/LPP)

Examined how well three measures, representing points on a traditional-alternative mathematics assessment continuum, discriminated fourth graders achieving above, at, and below grade level, and how cooperative testing affected performance assessment. Found strong discriminative validity for the more traditional measures but not for performance…

A study investigated the mathematical problem-solving abilities of 18 fourth-graders with mathematics disabilities (MD) with and without comorbid reading disabilities (RD). Results demonstrated large deficits for both groups. However, the differences between students with and without RD were mediated by the level of problem solving and by…