Evaluating a gated screening approach for identifying risk in kindergarten mathematics.

The purpose of the present study was to examine the diagnostic accuracy of different universal screening approaches for identifying mathematics difficulties in kindergarteners. We used extant data from 2,010 kindergarten students from 23 schools across two states. First, we identified the diagnostic accuracy of two individual screeners: (a) a set of three curriculum-based measures (CBM) and (b) a diagnostic measure, the Number Sense Brief (NSB). Then, we determined the diagnostic accuracy of a gated screening approach considering both the CBM and NSB. The criterion measure was a norm-referenced mathematics achievement test. The results indicated that area under the curve values met or exceeded .80 for both individual screeners; however, the number of false positives was high. The gated screening approach yielded fewer false positives at the expense of increasing false negatives. Directions for future research and the practical implications of the results for screening in kindergarten mathematics are discussed. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Do Mathematics and Reading Skills Impact Student Science Outcomes?

Establishing validated science programs for students with or at risk for learning disabilities requires testing treatment effects and exploring differential response patterns. This study explored whether students' initial mathematics and reading skills influenced their treatment response to a whole-class, second-grade science program called Scientific Explorers (Sci2). The original Sci2 study employed a cluster randomized controlled design and included 294 students from 18 second-grade classrooms. Differential effects of the program by initial mathematics and reading skill levels were not observed for an interactive science assessment and a distal science outcome measure. However, based on initial reading skill levels, moderation results were found on a science vocabulary measure, suggesting the effects of Sci2 were greatest for students with higher initial reading skills. Similar results were found using initial mathematics skill levels as a predictor of differential response such that students with higher mathematics skills reaped stronger treatment effects on the vocabulary measure. Further, we found initial mathematics skills also influenced outcomes on the proximal science content assessment, where students with higher initial mathematics skills led to higher outcomes. Overall, findings suggest Sci2 produced robust effects for all students (g = 0.24-1.23), regardless of initial skill proficiencies. Implications for exploring differential response in science intervention research are discussed.