Purpose: The purposes of this study were (a) to introduce "language access profiles" as a viable alternative construct to "communication mode" for describing experience with language input during early childhood for deaf and hard-of-hearing (DHH) children; (b) to describe the development of a new tool for measuring DHH…

In order to facilitate policy-driven reforms in science education, it is important to understand how teaching innovations diffuse among teachers and how that adoption process can be catalysed. Little is known about the set of attitudes that makes teachers early or late adopters. In this study, the Concerns-Based Adoption Model (C-BAM) was employed…

Data from 787 international undergraduate students at an urban university in the United States were used to demonstrate the importance of separating a sample into meaningful subgroups in order to demonstrate the ability of an English language assessment to predict the first-year grade point average (GPA). For example, when all students were pooled…

Using reliable and valid measures of students' outcomes which are sensitive to change is critical for obtaining interpretable and therefore useful results from evaluations of school-based interventions. While measurement development for use in experimental evaluations receives a great deal of attention in the U.S., it lags behind in low-income…

Usability and accessibility have become increasingly important in computing curricula. This article briefly reviews how these concepts may be included in existing courses. The authors conducted a survey of student attitudes toward these issues at the start and end of a usability engineering course that included a group project with an…

Construct validity was demonstrated for sixteen career subclusters through factor analysis of an occupational inventory based on interests in professional level job activities. (Author/LMO)

This study (1) provided evidence concerning the construct validity of scales based on the clusters found in a revised, professional-level form of the California Occupational Preference System Interest Inventory and (2) examined the degree of internal consistency of the 16 newly devised subscales. (Author/PN)

Three self-report self concept tests were administered to intermediate grade children. The subscales were clustered into three facets representing physical, social, and academic self concept. Some degree of construct validity was established, but discriminant validity was not. There was little evidence for the existence of separate facets of self…

Specific aptitude clusters from the Woodcock-Johnson Psycho-Educational Battery (WJPEB) are examined to determine their effectiveness in evaluating aptitude-achievement discrepancies. Advantages of the Scholastic Aptitude clusters over the Broad Cognitive Ability clusters are outlined. Major types of discrepancies, rationale, and research on the…

This study evaluated interrelationships among the scores of 51 high school seniors on the Remote Associates Test (RAT), verbal subtests of the Torrance Tests, the Alpha Biographical Inventory (ABI), and IQ. For all subjects, RAT scores, IQ, and the ABI Academic Success score comprised an interrelated "intelligence cluster." With males, none of the…

The analyses of J. E. Hunter (1983) were replicated with an expanded data set. The Hunter study, the basis of the Validity Generalization system used by the United States Employment Service, contained 515 General Aptitude Test Battery validation studies. The data set in this study included these and additional studies to bring the data set to 755…

This study reports the results of the cluster analysis and a study of the instruments used in the Comparative Guidance Placement Program as they function in each of 20 curricular group clusters. The battery of tests and questionnaires were administered to approximately 6,000 students enrolled in more than 50 different programs within 23…