The popularity of online surveys has increased the prominence of using weights that capture units' probabilities of inclusion for claims of representativeness. Yet, much uncertainty remains regarding how these weights should be employed in analysis of survey experiments: Should they be used or ignored? If they are used, which estimators are…

This report describes plans for the development of a major longitudinal research database designed to support the development and validation of new predictors of Army performance, and also new measures of Army performance against which the new predictors can be validated. The following aspects of the database are addressed: (1) the anticipated…

We look at three common research scenarios, one in the behavioral domain (i.e., disruptive behaviors) one in the cognitive domain (i.e., academic achievement), and one in the affective domain (i.e., anxiety and stress) for which school psychologists are asked to address important questions related to change. We list measurement and statistical…

Provides a brief overview of single-subject research designs. This method exercises its power by examining changes in single subjects' responses over time across experimental conditions. Describes a classroom project in which students collect repeated measures of their own behavior and graph the data. (MJP)

This paper examines some of the problems that arise when conducting multivariate analyses with incomplete data. The literature on the effectiveness of several missing data procedures (MDP) is summarized. The most widely used MDPs are: (1) listwise deletion; (2) pairwise deletion; (3) variable mean; (4) correlational methods. No MDP should be used…

The value of variance is emphasized, and the element of design, frequently not adequately understood, is clarified to underscore the importance of variance to the researcher. Two analytic methods, analysis of variance (ANOVA) and multiple regression, are discussed in terms of how each uses/applies variance. Advantages and major difficulties with…

When studying different types of returns to education, educational reforms are commonly used in the economics literature as a source of exogenous variation in education. The Swedish compulsory school reform is one example; the reform extended compulsory education throughout the country, in different municipalities at different points in time. Such…

Describes a study of computer science majors conducted at Purdue University to determine what factors predict academic success or lack of it. Results show that strength in mathematical and verbal skills is necessary for success as indicated by SAT scores, minimum number of high school mathematics credits, and class standing. (MBR)

This analysis of the evaluation literature on interactive video describes nature of the evaluations, reviews information on the effectiveness of interactive video, and discusses what the evaluations offer for improvement of interactive video design and use. Implications of these evaluations for the conduct of future studies are noted. (MBR)

Probable ages of normalization were calculated for 24 children with speech delay, using Kaplan-Meier analysis. Formulas are provided that permit calculation of the likelihood that individual children will normalize by a given age. Analysis revealed two different paths to normalization with children following one of the paths likely to retain…

This study examined the relationship between scholarly publication by faculty teaching in library and information science programs and 18 selected variables. Six variables were found to be predictors of faculty productivity: highest degree earned, size of faculty, years elapsed from bachelors's to highest degree, program type, prestige of program,…

Describes a study of 31 undergraduate students that explored their preferences for and the relationships among text format variables in computer screen layouts. The design of 64 computer text types for the study is explained, results are analyzed, and further research questions related to learning strategies are suggested. (LRW)

This document reports on the design and development of a comprehensive longitudinal monitoring system that allows for the identification of at-risk students and the evaluation of district programs and services by one high school and five elementary school districts in California and the School of Education at San Jose State University. The goal of…

Describes survey conducted among humanities faculty at University of Illinois at Urbana-Champaign to assess their current use of and attitudes toward educational computing. Topics covered on the questionnaire include computer experience, skills and frequency of use, computer interest and anxiety, computer software, and use for instructional,…

This paper describes the Multiple Assessment Programs and Services (MAPS) Placement Research Service. Students entering nonselective colleges show a wide range of ability. The College Board offers these colleges a number of tests of reading, writing, and mathematics skills for use in placing students appropriately. The MAPS Placement Research…