Cross-sectional studies have revealed many psychosocial correlates of adolescent substance use, including familial, environmental, and personality variables. In this prospective study, correlates of substance use were classified as concomitants or unstable if they covaried with substance use across time, increasing (or decreasing) when substance…

Researchers sometimes use stepwise methods to eliminate variables from analyses when the variables do not appreciably improve the ability to explain or predict inferences about the importance of various predictor variables. It is argued that stepwise methods are usually not appropriate for these purposes for three reasons. First, some researchers…

Prenatal appointment keeping is an important predictor of birth outcomes, yet many pregnant adolescents miss an excessive number of appointments. Since effective strategies for increasing appointment keeping require costly staff time, methods to predict relative risk for noncompliance with appointments might help delineate a circumscribed…

This study examined the relationship between qualitative and quantitative indicators of social support in the prediction of depression. Quantitative indicators were examined with regard to their direct effects on depression as well as their indirect effects through their relationship to perceived social support. Subjects were 301…

In his conceptualization of the developmental course of interpersonal understanding, Selman (1980) specifies a set of issues which are central to the concept. For each issue, he assumes that development proceeds through an ordered sequence of ontogenetic levels and that developmental progress has a high degree of inter-issue consistency. In…

Westbrook (1983) challenged the validity of the construct "career maturity" because measures such as the Career Maturity Inventory Attitude Scale (Crites, 1973) correlate to measures of mental ability. Rather than interpreting this association as evincing lack of discriminant validity, the association should be interpreted as supporting…

It is the purpose of this paper to investigate the chance nature of overfit as it relates to a regression formulation of research, to describe a model for projecting the overfit, and to empirically validate the model. (Author)

Article identified important variables where concentrated efforts can be made for the improvement of cognitive achievement of Indian children. (Author/RK)

The aim of this research was to increase understanding of the relationship between family variables and measures of child welfare. Conclusions were that welfare status is not explained by the use of individual measures on their own. (Author)

Data from 212 students were collected as part of a study of factors that contribute to academic success in introductory college-level speech communication courses. Nine noncognitive predictor variables were included: speech experience, absence of speech anxiety, four indicators of aspiration/performance consistency, and three demographic…

This paper considers the case of two predictor variables. Figures are obtained which show the regions of significance of joint regression coefficients, regression coefficients considered separately, and the multiple correlation. The intersection of these regions of significance and non-significance illustrates how the various apparent…

Score on the Mathematics Test of the National Teacher Examinations (NTE) was the dependent variable in a stepwise multiple regression using personological variables of in-service teachers as regressors. Two variables--number of semester hours credit in mathematics, and grade level of teaching--accounted for 61 percent of the observed NTE score…

This is one of a series of brief and non-technical mini-reports of the Evaluation System of the District of Columbia Public Schools. This report deals with the prediction of gain in Prescriptive Mathematics Test (PMT) scores. Twenty-two variables were involved in the analyses reported in the mini-report. The data were analyzed for all grade…

A procedure for rapid screening of variables as potential moderators is presented and discussed. A moderator is defined as any variable which can be used to identify differentially predictable persons; or defined statistically by stating that if a predictor and a moderator are each divided into three or more categories and used as independent…

Two hypotheses were developed in an attempt to organize and clarify the conceptual basis for studies of relationships between patterns of habitual sleep duration and self-perceptions of the need to achieve. A non-specific arousal (N-SA) hypothesis presumes that short sleepers show more vigor, more general anxiety, incline more toward development…