To ensure accurate interpretation of research findings, researchers should report details about their research design, data collection method, and response rates when presenting findings from survey research. A review of 100 peer-reviewed articles reporting the results of survey research on K-12 schools with principals as the designated…

Despite a well established body of international literature describing the effect of test anxiety on student performance in a range of assessments, there has been little work conducted on samples of students from the UK. The purpose of this exploratory study is two-fold. First, to establish the relationship between test anxiety and assessment…

Objective: To test and compare the efficacy of interactive- and print-delivered computer-tailored nutrition education targeting saturated fat intake reduction. Design: A 3-group randomized, controlled trial (2003-2005) with posttests at 1 and 6 months post-intervention. Setting: Worksites and 2 neighborhoods in the urban area of Rotterdam.…

One of the major problems that a tree-approach to data analysis often encounters is the instability of tree-structures. The instability issue must be dealt with before data can be interpreted by this method. Examining instability at a node of a tree provides insight into the instability of the whole tree, because the same theory of instability…

Commonality analysis is a method of partitioning variance that has advantages over more traditional "OVA" methods. Commonality analysis indicates the amount of explanatory power that is "unique" to a given predictor variable and the amount of explanatory power that is "common" to or shared with at least one predictor…

The interactive effects of Air Force occupational specialty and personnel characteristics on predictions of tenure for first-term enlisted airmen were studied. Historical data files were compiled on 280,039 Air Force enlistees. Two classes of variables were extracted for the sample: personnel characteristics including age, sex, race, educational…

As automated scoring of complex constructed-response examinations reaches operational status, the process of evaluating the quality of resultant scores, particularly in contrast to scores of expert human graders, becomes as complex as the data itself. Using a vignette from the Architectural Registration Examination (ARE), this paper explores the…

This article investigates the bias in regression coefficients caused by inconsistent aggregation of mean test scores by state from the Department of Education's table, "State Education Statistics." First theoretical calculations are used, then data are artifically aggregated from the High School and Beyond Sample. (Author/LMO)

The logic and procedures underlying a disturbance term regression test of logical consistency for structural models are reviewed for recursive and nonrecursive designs. It is shown that in a simple three-variable, complete mediational case the test procedure is mathematically equivalent to a part correlation. (Author/LMO)

In order to make parallel analysis more accessible to researchers employing principal component techniques, regression equations are presented for the logarithms of the latent roots of random data correlation matrices with unities on the diagonal. (Author/LMO)

The article suggests ways to make use of regression discontinuity to plan, implement, and evaluate gifted programs. It outlines how research data can illuminate rather than obscure program decisions. Making efficient use of multiple criteria identification data is discussed along with making program effectiveness decisions without using a control…

Making use of statistical analytical methods, the authors examine the systematic tendency toward disappointment that results from decision making generally and argue that such disappointment is built in structurally to the process of decision making itself. (Author/JBM)

The purpose of this paper is to assist researchers, practitioners, and graduate students in identifying and addressing key questions related to the task of choosing among the analytic techniques designed to analyze a dichotomized dependent variable with a set of independent variables. The discussion is limited to (1) the analysis of data by the…

Logistic regression was used to develop appropriate weights for an academic admission index. A combined sample of 3-year freshman cohorts (fall 1996 through fall 1998) was used to develop the index. The weights in several logistic regression analyses for high school class percentile and ACT composite score predicting different college outcomes…

The effect of a nonlinear regression term on the behavior of the standard analysis of covariance (ANCOVA) F test was investigated for balanced and randomized designs through a Monte Carlo study. The results indicate that the use of the standard analysis of covariance model when a quadratic term is present has little effect on Type I error rates…