In "The No Significant Differences Phenomenon," Russell (1999) discusses a thought-provoking pattern of research findings regarding integrating educational technology into classroom instruction that started in 1928 and continues today. Finding few studies that resulted in measurable positive effects, Russell concluded that using…

We evaluated the effectiveness of two alternative middle-school science curriculum sequences, namely, a general science model and a topic-specific model (i.e., physics, chemistry, etc.). We also investigated the differential effectiveness of the alternative sequences for two ethnic groups. The sample consisted of 367 grade 8 science students from…

Student perceptions of classroom environment can provide useful criteria for evaluating educational alternatives. The My Class Inventory (MCI) was used with 588 3rd- to 5th-grade students in Texas in evaluating the effectiveness of instruction using a textbook, science kits, or a combination of both. Various analyses attested to the factorial…

This study examines the perceptions of the learning environment and the attitudes held by students using various science-teaching materials in Texas. Using the My Class Inventory (MCI), interviews, and observation, students' perceptions of their classroom environments and their attitudes toward science were assessed. The goal of this study was to…

This article reports the validity and use of a new form of the Constructivist Learning Environment Survey (CLES). As part of a larger study, a comparative student version (CLES-CS) was developed to evaluate the impact of an innovative teacher development program (based on the Integrated Science Learning Environment, ISLE, model) in school…