Estimation of within-trial interactions in meta-analysis is crucial for reliable assessment of how treatment effects vary across participant subgroups. However, current methods have various limitations. Patients, clinicians and policy-makers need reliable estimates of treatment effects within specific covariate subgroups, on relative and absolute…

The literature on factors that influence participation in qualitative research is lacking. We conducted an experiment with a nationally representative sample to test the impact of different incentive types and amounts on willingness to participate in a hypothetical qualitative interview. We randomized participants from an online panel to one of…

Korean Americans (KAs) have low screening rates for cancer and are often not well informed about their chronic diseases. Reduced access to health-related information is one reason for gaps in knowledge and the widening health disparities among minority populations. However, little research exists about KAs' health information seeking behaviors.…

This "What Works Clearinghouse Procedures and Standards Handbook (Version 3.0)" provides a detailed description of the standards and procedures of the What Works Clearinghouse (WWC). The remaining chapters of this Handbook are organized to take the reader through the basic steps that the WWC uses to develop a review protocol, identify…

This study compares women of color and non-Hispanic White women regarding the influence of socioeconomic status, family investment, and psychological abuse on leaving a violent relationship. It was found that most women who left stayed away for less than a month. Women of color and non-Hispanic White women did not differ in their length or rate of…

Gerontological research appears to indicate that a relatively small percentage of the elderly population of the United States attends any of the nation's senior centers. In order to identify the correlates of senior center participation for a sample of elderly living in a small urban community, elderly male and female center users (N=97) and…

Studied 137 smokers who were assessed on 12 predictor variables and then randomly assigned to social support or self-control treatment. Social support treatment was more effective than self-control treatment for participants with high baseline self-control orientation scores and participants with high self-efficacy scores. Implications are…

Randomly assigned outpatients to one of three treatments: brief broad-spectrum (BBS), extended relationship enhancement (ERE), or extended cognitive-behavioral (ECB). Results suggest that the intensity of focus on relationship enhancement should be calibrated to the anticipated difficulty in dealing with problems in the patient's relationship to…

One limitation of hired farm labor data from the Decennial Census is undercounting; the seasonal nature of farm work means that many farm laborers are not employed in March, when the Census is taken. The 1981 Hired Farm Working Force Survey provided data to evaluate the usefulness of Census data for farm labor research. Data were grouped into…

This report draws on the Youth in Transition surveys to present educational participation rates for various categories of Australian youth. The focus is on how educational experiences differ among the categories and on the way in which such differences may have changed over time. Chapter 2 describes the way in which educational participation of…