The present paper suggests that multivariate methods ought to be used more frequently in behavioral research and explores the potential consequences of failing to use multivariate methods when these methods are appropriate. The paper explores in detail two reasons why multivariate methods are usually vital. The first is that they limit the…

Introduction: Knowing the credibility of information about genetically modified food on the Internet is critical to the everyday life information seeking of consumers as they form opinions about this nascent agricultural technology. The Website Quality Evaluation Tool (WQET) is a valuable instrument that can be used to determine the credibility of…

Three tables are provided to aid in the clinical interpretation of factor scores for the Wechsler Adult Intelligence Scale-Revised (WAIS-R; 1981). The factor structure of the WAIS-R has proven to be robust across samples, tests, time, statistical analyses, measurement scales, and distortions of the distribution. Information necessary to make…

This 3-year study, part of the Effective Schools Project of the Seattle School District and the University of Washington, was undertaken to investigate the relationship between teachers' perceptions of the principal as instructional leader and average gain scores of students in 67 elementary schools in Seattle. Scores were disaggregated by student…

A convenience sample of 46 subjects was selected from 104 elementary through secondary self-selected students who participated in a prototypical voluntary after-school and summer computer camp operated by an American southwestern nonprofit educational research laboratory. Following an initial 16-hour exposure to LOGO and Bank Street Writer, a…

An empirical study was conducted in order to obtain treatment effect estimates with the Special Regression model for groups in which there was no treatment. General mathematics test scores were obtained from 730 ninth graders in city schools somewhat similar to Title I schools, but in which no special treatments were given. Hypothetical…

The presence of artifactual bias in analysis of covariance (ANCOVA) and in matching nonequivalent control group (NECG) designs was empirically investigated. The data set was obtained from a study of the effects of a television program on children from three day care centers in Mexico in which the subjects had been randomly selected within centers.…

COMPUTER PROGRAMS AND OPERATING INSTRUCTIONS WERE REPORTED FOR USE IN PROCESSING DATA ON TEACHER ROLES. INCLUDED IN THE OVERALL DATA-PROCESSING METHOD WERE--(1) A PROGRAM FOR TABULATING CONTINGENCY TABLES FROM DATA ON PUNCHED CARDS, (2) A PROGRAM FOR SELECTING AND COMBINING ROWS AND CALCULATING MANN-WHITNEY MEASURES OF SIGNIFICANT DIFFERENCES…

The effects of two forms of presentation of the Army Racial Awareness Program (RAP) on the personal values of equality and freedom were assessed. Subjects were Army personnel assigned to RAP at Fort Meade, Md. The research instrument was the Rokeach Value Survey, in pretest-posttest administrations. Results suggested that the official RAP…

The Data Collaborative Model (DCM) assembles assessment literacy, reflective practices, and professional development into a four-component process. The sub-components include assessing students, reflecting over data, professional dialogue, professional development for the teachers, interventions for students based on data results, and re-assessing…

This study examined differences in student access to health services between schools with nurses 2 days/week (n = 7) compared to schools with nurses 5 days/week (n = 7). The study found statistically significant differences in numbers of nurse visits per 100 students. Of the 30 health conditions/activities investigated, 28 were statistically…

The purpose of this study was to ascertain the perceptions of postsecondary faculty members related to students with disabilities. A questionnaire, entitled "The Survey of Faculty Attitudes Relative to Serving Students with Disabilities," was used to collect data from a sample of 106 faculty members at a public four-year, state-supported…

In this article, the author analyzes the intertemporal consistency of high school grades as predictors of the academic performance of business administration students over a 2-year period by using data from a university in Germany. This study shows how students' average high school grades and a range of other factors are regressed on the students'…

Schools and districts are adopting out-of-school-time (OST) programs such as after-school programs and summer schools to supplement the education of low-achieving students. However, research has painted a mixed picture of their effectiveness. To clarify OST impacts, this synthesis examined research on OST programs for assisting at-risk students in…

The Workshop on Integrating Federal Statistics on Children provided a forum for assessing strengths and shortcomings of existing and proposed federal statistical data sources for children and families. In particular, these data sources were assessed with respect to their capacity to fill the most pressing information needs of those who formulate,…