Guided by the theory of differentiated instruction, this quantitative study evaluated the effectiveness of Achieve 3000, a technology-enhanced program for differentiating reading instruction. Achieve 3000 was fully implemented with fidelity in a local middle school that has a large percentage of advanced learners. Archived reading scores of 120…

This paper reports the outcomes of an experimental evaluation of "Direct Instruction Spoken English" ("DISE"), an English language curriculum that focuses on developing English speaking, listening, and comprehension skills in English Learners (ELs). Twenty-nine middle schools in three states were randomly assigned to teach…

This paper reports the outcomes of an experimental evaluation of "Direct Instruction Spoken English (DISE)," an English language curriculum that focuses on developing English speaking, listening, and comprehension skills in English Learners (ELs). Twenty-nine middle schools in three states were randomly assigned to teach "DISE"…

This study investigates the predictive validity of students' levels of critical thinking disposition, as measured by the California Measure of Mental Motivation (CM3; Giancarlo, Blohm, & Urdan, 2004) for students' math achievement, as measured by the Mathematics assessment included in the Florida Comprehensive Assessment Test (FCAT). The CM3…