The effects of the violation of the assumption of normality coupled with the condition of multicollinearity upon the outcome of testing the hypothesis Beta equals zero in the two-predictor regression equation is investigated. A monte carlo approach was utilized in which three differenct distributions were sampled for two sample sizes over…

A set of symbols is presented along with logical operators which represent the possible manipulations of the linear model. The use of these symbols and operators is to simplify the representation of analysis of variance models, correlation models and factor analysis models. (Author)

In an experiment manipulating artificial data in a factorial design, model misspecification and varying levels of error in measurement and in model structure are shown to have significant effects on LISREL parameter estimates in a modified peer influence model. (Author/LMO)

Describes two experiments conducted with undergraduate students to determine effects of field dependence/independence on visual characteristics and presentation modes. The first studied content information recall from still projected visuals of different sizes and types of illustrations; the second studied visual-location task performance and…

Reviews a number of issues relating to the results of evaluation studies: standards of acceptability; clinical vs. statistical significance; fallacies in the use of theory; and program, theory, measurement, and design failure. (Journal availability: Subscription Manager, MOBIUS, University of California Press, Berkeley, CA 94720.) (SK)

Studied the assertion that student and faculty gender, and their interaction, have little or no real effect on student ratings of university teaching quality, using 1,304 students from a Spanish university. Results, taking into consideration statistical significance and effect size, support the assertion. Implications for higher education are…

A meta-analysis determined the importance of feedback in computer-based learning; 59 studies were collected and evaluated for inclusion in the meta-analysis in terms of design, sample size, and availability of appropriate statistics. Achievement outcomes were found to be greater for the feedback group than the control group. (AEF)

Although replication is important to the validity of a study and is endorsed by more and more scholars, few researchers in kinesiology attend to this issue. Some researchers may believe that statistical significance and effect size are the most important statistical issues in their research and thereby may have ignored the importance of result…

This article describes a study of the effects of partial replacement of lectures with a system of prescribed reading, supported by weekly objective testing in a second year animal physiology module. Formative tests with feedback within 24 hours were followed a week later with summative tests on the same material, utilising a proportion of the same…

Objective: The purpose of this research project was to examine the relationship between parenting stress and a child's ability to functionally communicate within families who participated in an early intervention developmental disability program. Method: Using a two-group, cross-sectional survey design, this study explored the above relationship…

This article presents a rejoinder on the commentaries regarding the author's focus article titled, "Measurement of Central Aspects of Scientific Research: Performance, Interdisciplinarity, Structure," structuring comments around a number of main topics discussed by the authors of the commentaries. The author presents technical issues…

We compared a reading intervention that consisted of explicit, self-regulatory strategy instruction to a strategy intervention that was less explicit to determine the impact on the reading-specific self-efficacy, attributions, and affect of students with reading disabilities (RD). Participants included 20 students with RD who were entering grades…

This mixed method study used survey research, open-ended questions, and interviews to identify transformational leadership qualities among principals of publicly funded schools in the Province of Alberta, Canada. Five-hundred-nine teachers (37.7%) from a random sample of schools in the province completed the Multifactor leadership Questionnaire…

The California Chemistry Diagnostic Test (CCDT) was developed by chemistry faculties at the University of California, California State University, and California Community College systems to address dissatisfaction with existing chemistry assessment instruments. The instrument was tested at 25 campuses of the 3 systems, after which Glendale…

The use of tests of statistical significance was explored, first by reviewing some criticisms of contemporary practice in the use of statistical tests as reflected in a series of articles in the "American Psychologist" and in the appointment of a "Task Force on Statistical Inference" by the American Psychological Association…