The current study employed a secondary statistical analysis on the 2007 National Study on Nontraditional Students Survey data to investigate whether personal characteristics, student perceived stressors, and social support could predict academic performance of nontraditional students enrolled in three different learning environments in terms of…

American educational leaders seek to educate children (regardless of race, class, or economic status) to become productive citizens. In order for our country to compete with other countries where students are well educated and highly motivated, we need to ensure that our educational system is equipped with the technology and tools that would allow…

The purpose of this study was to analyze the spring 2008 Community College Survey of Student Engagement (CCSSE) results from a community college located in Southeast Texas to determine what relationship student engagement had to student persistence and academic performance and if that relationship differed by race, ethnicity, or academic program.…

Background: Smoking is popular among Korean male high school adolescents, with the prevalence of 20.7% differing markedly with the type of school, being 16.3% and 27.6% in academic and vocational technical high schools, respectively. The purpose of this study was to identify significant variables that predict stages of smoking cessation among…

Since canonical correlation analysis subsumes multiple regression as a special case, and since commonality analysis (a variance partitioning procedure) has proven useful in interpreting multiple regression results, the interpretation of canonical correlation results might also be enhanced by the use of commonality analysis. In this paper, a…

The stepwise regression method of selecting predictors for computer assisted multiple regression analysis was compared with forward, backward, and best subsets regression, using 16 data sets. The results indicated the stepwise method was preferred because of its practical nature, when the models chosen by different selection methods were similar…

Further analysis of data previously discussed in a journal article ("Episodic Instability in School District Elections," by L. Criswell and D. Mitchell, in the July, 1980 issue of "Urban Education") indicates that the success of a school board candidate in defeating an incumbent increases the probability that other school board…

The Mahalanobis distance model was compared with the linear discriminant function model and found to provide very similar results, even when a number of the variables were binary. A group of college freshmen were categorized into two groups: 116 "leavers," students who did not return for the second year, and 269 "returners."…

Eight discriminators were identified and data were obtained from the records of 80 graduate students who attained one of four achievement levels at the conclusion of a beginning course in educational statistics. Although the internal discriminatory power of the set of eight measures was very high, estimates of the true power were discouragingly…

The Feasibility of developing an index to represent the degree of consistency with which a student responds to a set of items in a homogeneous scale is investigated. The dispersion of responses to a set of items by a group of subjects has typically been measured by the standard deviation. Here, the interest is in the dispersion of responses from…

This study was designed to determine whether adjustments for the differential prediction observed among sex, racial/ethnic, or age subgroups in one freshman class at a college could be used to improve prediction accuracy for these subgroups in future freshman classes. (Author/LMO)

This report uses data from the Health and Retirement Survey (HRS) to analyze transitions in disabilities and employment from 1992 to 1994, the first two waves of the HRS survey. The survey included people ages 51 to 61 years of age in 1992, resulting in 8,737 participants. The report estimates the incidence of disabilities from 1992 to 1994 and…

(See also TM 501 087, TM 501 089 and TM 501 090.)

Rules are given for estimating accuracy of predictions based on a multiple regression equation. Formulas for moments of distribution and other parameters are noted. The approximate inflation in mean absolute error due to estimating the regression coefficients is a function of the base sample size and number of predictors. (DWH)

Textual properties of documents were analyzed to identify predictive variables for various document qualities by means of statistical and linguistic methods. A collection of 1000 documents was created, and each document was judged in terms of nine document qualities (accuracy, reliability, objectivity, depth, author/producer credibility,…