To determine the extent to which published randomized controlled trials (RCTs) of psychotherapy can be generalized to a sample of outpatients, the authors matched information obtained from charts of patients who had been screened out of RCTs to inclusion and exclusion criteria from published RCT studies. Most of the patients in the sample who had…

If a random sampling of student affairs professionals was taken, they'd all agree: without the work they do with students, campus functions would simply grind to a halt. "Student affairs professionals spend 80 percent of their time with students. We do admissions and registration, we house them and feed them, we do the counseling and guidance…

Context and Purpose: This study examined the predictors of HIV testing and factors associated with intention to accept a free HIV test among 244 Hispanic migrant/seasonal farmworkers in South Florida. Methods: Time and space sampling procedures were used to recruit participants in public venues. Bilingual staff interviewed eligible respondents in…

Addressing methodological weaknesses of previous research, this study assesses whether African American women are, in fact, less likely to participate in breast cancer support groups than are White women. Of the breast cancer survivors, 958 (26% African Americans, 73% Caucasian) completed interviews concerning demographic characteristics, other…

The meta-analytic random effects model assumes that the variability in effect size estimates drawn from a set of studies can be decomposed into two parts: heterogeneity due to random population effects and sampling variance. In this context, the usual goal is to estimate the central tendency and the amount of heterogeneity in the population effect…

This tutorial is concerned with examining how regression to the mean influences research findings in longitudinal studies of clinical populations. In such studies participants are often obtained because of performance that deviates systematically from the population mean and are then subsequently studied with respect to change in the trait used…

Students in statistics service courses are frequently exposed to dogmatic approaches for evaluating the role of randomization in statistical designs, and inferential data analysis in experimental, observational and survey studies. In order to provide an overview for understanding the inference process, in this work some key statistical concepts in…

This paper reviews research based on the psychological autopsy (PA) method applied to the study of suicide. It evidences the presence of a number of methodological problems. Shortcomings concern sampling biases in the selection of control subjects, confounding influences of extraneous variables, and reliability of the assessment instruments. The…

An experiment is described which uses a real-world sample of lawn fertilizer in a simple exercise to illustrate problems associated with the sampling step of a chemical analysis. A mixed-particle fertilizer containing discrete particles of iron oxide (magnetite, Fe[subscript 3]O[subscript 4]) mixed with other particles provides an excellent…

In these days where "accountability" is the byword, organizations more and more frequently seek to evaluate their programs. They often hire outside evaluators to help them assess the effectiveness of their programs, to find out what works and what doesn't, and to determine what programmatic changes would be beneficial. ActKnowledge, a…

The "Where Did They Go?" study, co-funded by the BC Council on Admissions and Transfer (BCCAT) and the Canadian Council on Learning (CCL), was designed to complement research undertaken under the auspices of the Student Transitions Project (STP) which has tracked the public post-secondary participation of BC high school graduates from…

A reasonable expectation of textbooks used in Christian schools is that they should regularly incorporate biblical content. It is also reasonable to expect the biblical content to be integrated--not segregated--to influence matters such as worldview, biblical relevance, character, and integrative skills. This expectation was tested via a…

In this paper an attempt is made to highlight some issues of interpretation of statistical concepts and interpretation of results as taught in undergraduate Business statistics courses. The use of modern technology in the class room is shown to have increased the efficiency and the ease of learning and teaching in statistics. The importance of…

The article examines the perceptions of managers, academics and technical staff in relation to the transfer of training resulting from their participation in out-country training funded by Bhutan's Ministry of Education. Out-country training refers to in-service education, training and professional development programs, especially in relation to…

Using longitudinal survey data collected in collaboration with a treatment program, this paper estimates the economic impacts of antiretroviral treatment. The responses in two outcomes are studied: (1) labor supply of treated adult AIDS patients; and (2) labor supply of individuals in patients' households. Within six months after treatment…