This article provides a meta-analysis of studies using the crosswise model (CM) in estimating the prevalence of sensitive characteristics in different samples and populations. On a data set of 141 items published in 33 either articles or books, we compare the difference ([delta]) between estimates based on the CM and a direct question (DQ). The…

Due to high retention rates, small private online course (SPOC) has become increasingly popular among universities. However, existing analyses of learning behavioral patterns in SPOC remain extremely lacking. This present study conducts an empirical analysis on the behavioral patterns of 12,517 undergraduates engaging in a college's SPOC platform,…

Objective: To develop a conceptual computational agent-based model (ABM) to explore community-wide versus spatially focused crime reporting interventions to reduce community crime perpetrated by youth. Method: Agents within the model represent individual residents and interact on a two-dimensional grid representing an abstract nonempirically…

Objective: To assess the prevalence and frequency of medical marijuana diversion and use among adolescents in substance abuse treatment and to identify factors related to their medical marijuana use. Method: This study calculated the prevalence and frequency of diverted medical marijuana use among adolescents (n = 164), ages 14-18 years (mean age…

Very little of the professional literature on suicide deals with suicide in jails, and virtually no references to juvenile suicide in adult jails exist. To determine if the rate of juvenile suicide in adult jails might be higher than that in secure juvenile detention centers, suicidal conduct was used as the indicator of the harmful effects of…

Examined behavior problems of African American children attending Head Start in violent neighborhoods. Found Child Behavior Checklist externalization scores significantly higher than standardization sample; higher percentages of boys than girls had severe internalizing problems; higher percentages of girls than boys had severe externalizing…

Background: Although the prevalence of bully/victim problems in school-age children and adolescents has been investigated in many countries, only a few studies have been carried out among younger children. This study examines social behaviors and peer relationships of children involved in bully/victim problems in kindergarten. Methods: Three…

A national survey of 6115 college students indicated that 81.9 percent were drinking at least once a year and 20.2 perent were heavy drinkers. Results are presented for demographic and drinking characteristics, and comparisons with a similar 1974 study are given. (Author/BL)

Reviews epidemiological studies of cardiovascular diseases especially coronary heart disease (CHD), to document their major public health importance, changes in mortality during this century, and international comparisons of trends. Finds major risk factors for CHD are determined in large part by psychosocial and behavioral mechanisms. Asserts…

Surveys of drug and alcohol use conducted with 4,367 Mexican-American and 3,790 White non-Hispanic eighth and twelfth graders from similar communities find generally higher rates of substance use by Mexican Americans based on lifetime prevalence and last reported use and higher frequency of high risk drug behaviors. (SLD)