The purpose of this study was to investigate the potential viability of the variable certification by the National Board for Professional Teaching Standards (NBPTS) as a policy-relevant predictor of student achievement. Because research has identified the teacher as the most important school-related predictor of student achievement, more research…

Reviews several potential problems that often invalidate statistical tests of social theories. Discusses how there may be very serious identification problems in the estimation of the relationship between executions and homicides, and that serious questions may be raised regarding the validity of any particular estimation of this relationship.…

Examines factors that are predictors of parental mediation and rulemaking for adolescent use of videocassette recorders (VCRs) and television. A study is described that explored the relationship of socio-demographic family patterns, media exposure, and access factors related to mediation among seventh and tenth graders, and results are compared…

Composite reading performance data from 223 pairs of identical twins and 169 same-gender fraternal twins in which at least one member was classified with reading disability were subjected to multiple regression analysis. Results indicated that the genetic etiology of reading disability differs as a linear function of IQ. (Contains extensive…

The present study examines predictors of heavy drinking frequency and drinking-related problems among more than 600 college students. Controlling for high school drinking frequency, results of multiple regression analyses showed that more frequent heavy drinking was predicted by being male and risk factors of more frequent marijuana and tobacco…

The authors investigated whether undergraduates' scores on the Verbal and Quantitative tests of the Graduate Record Examinations and their undergraduate grade point average can be used to predict knowledge, personal development, and skills of graduates of counseling programs. Multiple regression analysis produced significant models predicting…

Structural equation modeling (SEM) refers to a family of statistical techniques that explores the relationships among a set of variables. Structural equation modeling provides an extremely versatile method to model very specific hypotheses involving systems of variables, both measured and unmeasured. Researchers can use SEM to study patterns of…

The potential role of social support for the adolescent offspring of psychiatric patients has hitherto not been examined. We examined whether the adolescent's level of psychiatric symptoms is dependent on the content and the function of social support (whether direct or moderating), controlling for perceived stress. In a cross-sectional design, 40…

This study investigated factors affecting second/foreign language (L2) reading comprehension in a hypermedia environment within the theoretical framework of dual coding and cognitive load theories, and interactive models of L2 reading. The independent variables were reading ability, topic interest, prior topical knowledge, and the number of times…

Taking advantage of the convergence of technology and new insights of teaching and learning, the Ministry of Education of Malaysia has implemented a new educational reform primarily to revise the current curriculum, establish new learning standards, and incorporate the use of technology as an integral part of the learning process. This new…

"Background": Clinical trials have shown that behavioural treatments based on variants of prolonged-speech (PS) are best practice for reducing the stuttering rate in adults. However, while stuttering is significantly reduced or eliminated for most adults in the short-term with such treatment, relapse in the longer-term is common. Consequently,…

The present study examines the role of a Vietnamese heritage language school in cross-cultural adaptation, as operationalised by the confluence of two independent variables, language competence and integrated cultural identity. To characterise the students' language competencies and degree of integrated cultural identities, interview…

In 1990, a study was conducted at Tompkins Cortland Community College (TCCC) to determine if there was a significant difference in the personal characteristics of applicants for full-time study who actually attended and those who did not attend the college. In addition, the study sought to identify those variables that accounted for the largest…

The Center for Education Statistics (CES) forecasts that current expenditures in public elementary and secondary schools will increase 3.5 percent from school year 1986-87 to school year 1987-88. Current expenditures, which increased 22.6 percent from 1981-82 to 1986-87, are projected to increase 16.4 percent from 1986-87 to 1991-92. One table and…

Classical statistical methods and the small enrollments in graduate departments have constrained the Graduate Record Examinations (GRE) Validity Study Service to providing only validities for single predictors. Estimates of the validity of two or more predictors, used jointly, are considered too unreliable because the corresponding prediction…