Cluster analysis and analysis of variance procedures were used to identify students' domain-specific epistemological belief profiles and to examine differences in students' beliefs, motivation, and task performance. Four hundred eighty-two undergraduates completed measures regarding their beliefs about knowledge, competency beliefs, and…

Primary objective: To determine if structural priming can be demonstrated in young children with and without specific language impairment (SLI). Research design: A mixed-model design was used to compare children with SLI to two groups of typically developing (TD) children, and to compare priming conditions. Methods and procedures: Eighteen…

We examined leisure behaviours and the relationships between leisure and a variety of problem behaviours in a sample of 1422 Hungarian adolescents (age range: 14-19). Findings from multivariate analyses suggest that some aspects of adolescent leisure, such as family or conventional activities, act as protective factors against problem behaviours,…

This article presents replies to published comments on the authors' original article (R. L. Sternberg, E. L. Grigorenko, and K. K. Kidd. G. Carey cited in his response to their article a study by Tang et al. (2005) showing that "of 3,636 subjects of varying race/ethnicity, only 5 (0.14%) showed genetic cluster membership different from their…

Recently, nonparametric methods have been proposed that provide a dimensionally based description of test structure for tests with dichotomous items. Because such methods are based on different notions of dimensionality than are assumed when using a psychometric model, it remains unclear whether these procedures might lead to a different…

The article uses confirmatory factor analysis (CFA) as a template to explain didactically multilevel structural equation models (ML-SEM) and to demonstrate the equivalence of general mixed-effects models and ML-SEM. An intuitively appealing graphical representation of complex ML-SEMs is introduced that succinctly describes the underlying model and…

This empirical study is intended to assess whether a standards-based integrated teacher preparation curriculum is more beneficial in developing professional competencies than a traditional course-oriented curriculum at a college of education in a state university. Using multivariate analysis of variance, we found that students who went through the…

The use of complex value-added models that attempt to isolate the contributions of teachers or schools to student development is increasing. Several variations on these models are being applied in the research literature, and policy makers have expressed interest in using these models for evaluating teachers and schools. In this article, we…

An analysis of ranking data, taken from "Maclean's" magazine's 2001 rankings of the 47 Canadian universities, is presented. Consistent with previous research, the rank data show that the specific measures and indices used by the magazine are inconsistently related to each other and to the universities' final assigned rankings. Some…

Objective: To derive an empirical taxonomy of osteoprotective stages using the Precaution Adoption Process Model (PAPM) and to identify the predisposing factors associated with each stage. Methods: An anonymous survey was completed by 504 undergraduates at a Midwestern public university. Results: Cluster analytic findings indicate that only 2…

Purpose: Assisted living is an increasingly important residential setting for the frail elderly person. How often and why residents leave such facilities are important issues for consumers, for clinicians advising frail patients on their options for living arrangements, and for policymakers. This research investigated the impact of facility and…

Hemiplegic patients suffer from difficulties in self-awareness, either due to specific neurological disturbances of body image or to psychological problems with their I images. Both types of difficulty have to do with the specular image as defined by Lacan (1966a) (i.e., the psychic structure that links the body with the "symbolic" and "imaginary"…

A quantitative method for typing psychopathology of youngsters with mental retardation was assessed. Parents of 601 students in special educational placements rated them with the ABC. The sample was randomly divided into two subgroups. We used Ward's hierarchical method of cluster analysis and derived eight clusters in Subsample 1 and satisfactory…

Oversampling and cluster sampling must be addressed when analyzing complex sample data. This study: (a) compares parameter estimates when applying weights versus not applying weights; (b) examines subset selection issues; (c) compares results when using standard statistical software (SPSS) versus specialized software (AM); and (d) offers…

Students' attitudes toward science significantly alter their achievement in science. Therefore, identification and influence of attitudes became to be an essential part of educational research. This study has been initiated by the idea that; research in students' attitudes toward science often involves science in general, but particular…