Because subsequent pregnancy in teen parents often worsens the impact of adolescent parenting; therefore, a common goal of teenage parent programs has been to reduce repeat pregnancy. To examine the impact of this goal, a meta-analysis was conducted on 16 control-comparison group studies that evaluated the effect of teenage pregnancy and parenting…

This article reports on an analysis of person attributes of e-learning practitioners at the Tshwane University of Technology (TUT). Findings from a study of the latent structure of an e-learning practitioner construct, are presented to illuminate the characteristics and personal profiles of the e-learning practitioners at TUT. Rich sources of…

Federal laws mandate that students with cognitive disabilities receive instruction in academic skills and also support the importance of teaching self-determination. The purpose of this literature review was to synthesize intervention research examining effects of self-determination interventions on academic skills for students with cognitive…

Four successive randomized clinical trials studying contingency management (CM), involving various treatment arms of drug-abstinent housing and work therapy and day treatment (DT) with a behavioral component, were compared on common drug abstinence outcomes at 2 treatment completion points (2 and 6 months). The clinical trials were conducted from…

The notion that chronic stress fosters disease by activating the hypothalamic-pituitary adrenocortical (HPA) axis is featured prominently in many theories. The research linking chronic stress and HPA function is contradictory, however, with some studies reporting increased activation, and others reporting the opposite. This meta-analysis showed…

A study used qualitative meta-analysis to examine a set of empirical studies concerned with listening instruction. Twenty-four studies (subjects were all ages) published in communication-related journals between 1950 and 1989 were analyzed. Analysis of the papers showed conflicting results, producing no clear findings as to whether listening can…

The purpose of this paper was to research published validity reports of the Multiple Assessment and Program Services (MAPS) Test and to conduct quantitative analysis on the validity coefficients from the MAPS reports to determine the generalizability of the results and to identify which variables in the reports impact these coefficients. The…

The use of a Bayesian approach in evaluating data from clinical trials with many treatment centers and from many studies is discussed. The main distinction between a metaanalysis and an analysis of a multicenter trial is that different studies may have very different designs, while the centers in a multicenter trial usually follow the same…

To examine methodological issues of managerial gender communication, a study conducted a meta-analysis of the primary research of managerial gender communication. The study addressed the following four issues: (1) the inconsistent findings in managerial gender communication research; (2) the potential influence of male and female stereotypes on…

Meta-analysis is a quantitative or statistical method for doing a literature review which replaces the traditional narrative method of reviewing literature. Statistics are taken from individual empirical studies and then statistical formulas are used to combine and test hypotheses. For feminist psychology, meta-analyses have usually been directed…

This bibliography identifies reports of research on the effects of variables other than knowledge of content on mathematics test performance. The listing was developed for a synthesis of its research, performed by meta-analysis at Adrian College, Michigan, in 1985. Variables chosen for study were determined by the criterion that each could be…

A new approach is presented for the meta-analysis of data from pre-test/post-test designs. With this approach, data from studies using different designs may be compared directly and studies without control groups need not be omitted. The approach is based on a "standardized mean-change" measure, computed for each sample within a study,…

Methods to aid the statistical researchers in making arguments as to what constitutes minimal effect size (MES) are outlined. By selecting MES and determining power for that effect, the researcher communicates to the reader what the researcher considers to be important and what the researcher's chances are for finding that effect or a larger one.…

The usefulness of meta-analysis in summarizing domains of primary research has led to widespread use of the techniques. Often, however, the researcher will have several options when cumulating empirical studies and readers will have questions regarding judgment calls made during a meta-analysis. In these cases, it is helpful to consult the primary…

To investigate the role and portrayal of women in newspapers and to determine trends emerging from this portrayal, a study examined 15 published quantitative research studies (content analyses) on the portrayal of women in newspapers, dating from 1973 until 1988. Studies were gathered primarily from "Communication Abstracts," the…