Learning Disabilities Research & Practice最新文献

An interactive multimedia software program was developed for teaching punctuation strategies and then tested with middle-school and high-school students with learning disabilities. Students at each school level were randomly selected into an experimental or control group. Results showed that experimental students at both school levels performed similarly by earning significantly higher scores on a test of punctuation usage than the control students. Additionally, experimental students in both school cohorts inserted significantly fewer incorrect punctuation marks than the controls. Furthermore, the experimental students generalized their use of the strategies to a test where they wrote their own sentences. Thus, this study shows that students with LD can learn punctuation strategies at a high level of mastery and can generalize their skills to sentence editing and sentence construction tasks when taught through interactive multimedia.

Single-case research methods provide a basis for demonstrating that an intervention produces a reliable change in a targeted outcome for individual cases. To supplement visual analysis of data in single-case studies, researchers frequently report statistics—often referred to as effect sizes—to summarize study findings. The recent proliferation of effect sizes used in single-case research can be confusing. In this article, after reviewing single-case research, we provide an overview of common types of effect sizes used in single-case research, including overlap metrics and within- and between-participant effect sizes, and conclude with examples of these effect sizes in the single-case literature. Our take-home message is that effect sizes are useful complements to visual analysis when interpreting results of single-case design research studies.

High-stakes mathematics assessments require students to write about mathematics, although research suggests students exhibit limited proficiency on such assessments. Students with LD may have difficulties with writing, mathematics, or both. Researchers employed an intervention for teaching students how to organize mathematics writing (MW). Researchers randomly assigned participants (n = 61) in grades 3–5 to receive instruction in MW or information writing. Students receiving MW outperformed control students on a researcher-developed measure of MW (d = 1.05). Component assessment revealed MW students improved in writing organization (d = 1.49) but not in mathematics content (d = 0.11 ns). Results also indicated MW students outperformed control on percentage of correct MW sequences (d = 0.82). Future directions for MW intervention development are discussed.

Assessment results are used to investigate relations between performance on a fraction number line estimation task and a circular area model estimation task for students with LD in Grades 6–8. Results indicate that students’ abilities to represent fractions on number lines and on circular area models are distinct skills. In addition, accurate fraction magnitude estimation using number lines was more strongly related to other fractions skills (e.g., fraction magnitude comparison) than accurate fraction magnitude estimation using circular area models. Our findings call for greater integration of the number line into early fractions instruction, and highlight the importance of explicitly teaching students to make connections between different visual representations of fractions. Implications for research and practice are presented.

This randomized control treatment study investigated the role of generative paraphrasing interventions on word problem-solving (WPS) accuracy in English language learners (ELL) who were at risk for math difficulties (MD). One hundred and forty-two third-grade monolingual and English language learners were randomly assigned to either an untreated control group or one of three treatment conditions: paraphrase question (Restate), paraphrase relevant information (Relevant), and paraphrase all propositions (Complete). Results showed that the relevant treatment condition improved WPS accuracy for monolingual and ELL children's accuracy relative to the control and restate condition. There were, however, no positive advantages on the transfer measures (knowledge of problem-solving components, calculation) for ELL children with MD. In addition, the magnitude of posttest outcomes on the problem-solving measures was substantially smaller for ELL children with MD than for children without MD. Although the results overall support the notion that generative learning improves problem-solving accuracy, ELL children without MD are most likely to benefit from its application.

The purpose of this study was to explore the relationships among (1) special education teachers’ knowledge for teaching reading fluency, (2) the specific instructional practices they used in fluency instruction, and (3) gains of students with specific learning disabilities (SLD) on a performance measure of oral reading fluency (ORF). Analyses based on multilevel linear modeling and analysis of covariance indicated that for 42 special education teachers teaching third, fourth, and fifth graders with SLD in intensive reading groups, teachers’ knowledge for teaching reading fluency predicted student gains on ORF measures, but did not predict their instructional practice. Furthermore, teacher practice did not predict student gains on ORF. Practical implications and future research are discussed.