Evaluation data about extension programs are subject to variation. Program improvement requires control of this variance. Statistical quality control charts provide a means of measuring variation, determining sources, and making modifications. (SK)

Over the past decade, quantitative methods have evolved to provide evaluators with more effective means for collecting, analyzing, and interpreting information. The advances discussed are: (1) facilitating advances that consist of changes that make carrying out quantitative evaluation easier; (2) advances in measurement; and (3) advances in…

Describes and assesses missing data methods currently used to analyze data from matrix sampling designs implemented by the National Assessment of Educational Progress. Several improved methods are developed, and these models are evaluated using an EM algorithm to obtain maximum likelihood estimates followed by multiple imputation of complete data…

Responds to criticism by Levy, Wong, Benbenisty, and Mattaini (1996) of Rubin and Knox's (1996) article (CG 548 550) concerning data analysis in single-case evaluations. Refutes assertions that the intention of the article was to reject all single-case methodology. The intention was to emphasize the limitations inherent in applying such methods in…

Discusses contemporary theories of adolescence, stressing developmental systems models that integrate individual and contextual levels of analysis. Maintains that adolescence should be studied with multivariate-longitudinal designs, change-sensitive measures, and data analytic strategies capitalizing on triangulation across quantitative and…

Describes and demonstrates analytical techniques used in organizational psychology and contemporary multilevel analysis. Using these analytic techniques, examines the relationship between educational outcomes and the school environment. Finds that at least some indicators might be represented as school-level phenomena. Results imply that the…

Discussion and analysis of effects of educational debt for professional school students includes four tables based on the National Student Loan Survey showing: (1) income and debt levels by graduate field of study; (2) graduate students in law and medicine (debts and income); (3) fields of graduate study with high payment-to-income ratios; and (4)…

Examines perceived risk data from the United States, China, Japan, and South Korea. Compares similar results collected from previous studies. Analyzes psychometric scaling scores from Burkina Faso, France, Norway, and Hungary. (Author/CCM)

Argues that students need to recognize the purpose for which data is gathered, classified, and arranged. Discusses insights into mathematics teaching and learning in a Japanese classroom. (CCM)

Churn management is a concern for businesses, particularly in the digital economy. A customer relationship framework is proposed to help deal with churn issues. The model integrates the electronic channel and involves four tools for enhancing data collection, data treatment, data analysis and data integration in the decision-making process.…

Uses data from the 1994 AIDS Knowledge and Attitudes Supplement to the National Health Interview Survey (NHIS) to illustrate that biased point estimates, inappropriate standard errors, and misleading tests of significance can result from using traditional software packages, such as SPSS or SAS, for complex survey analysis. (BF)

People presume that the light source in pictures comes from above, and there is some evidence that this phenomenon also demonstrates lateral biases. When investigators present multiple ambiguous stimuli or visually complex objects, people assume that the source of light is from above, and to the left. However, when single relatively simple stimuli…

Currently there are no available sleep disorder measures for individuals with severe and profound intellectual disability. We, therefore, attempted to establish the external validity of the "Diagnostic Assessment for the Severely Handicapped-II" (DASH-II) sleep subscale by comparing daily observational sleep data with the responses of…

Student test-taking motivation in low-stakes assessment testing is examined in terms of both its relationship to test performance and the implications of low student effort for test validity. A theoretical model of test-taking motivation is presented, with a synthesis of previous research indicating that low student motivation is associated with a…

A linear latent growth curve mixture model is presented which includes switching between growth curves. Switching is accommodated by means of a Markov transition model. The model is formulated with switching as a highly constrained multivariate mixture model and is fitted using the freely available Mx program. The model is illustrated by analyzing…