This brief report attempts to resolve the claim that infants preferentially attend to continuous variables over number [e.g. Psychol. Sci. 10 (1999) 408; Cognit. Psychol.44 (2002) 33] with the finding that when continuous variables are controlled, infants as young as 6-months of age discriminate large numerical values [e.g. Psychol. Sci. 14 (2003)…

This study compares the classification accuracy of linear discriminant analysis (LDA), quadratic discriminant analysis (QDA), logistic regression (LR), and classification and regression trees (CART) under a variety of data conditions. Past research has generally found comparable performance of LDA and LR, with relatively less research on QDA and…

This article uses data from the National Longitudinal Survey of Youth 1979-1998 to understand the differences between those who exited the welfare system voluntarily (leavers) and those who stayed (non-leavers), 1990-1996. The purpose of this research was to examine the differences between the groups in their personal and family characteristics,…

Purpose: The aims of this study were to examine differences between older men and women: (a) in the ability of self-rated health to predict mortality, (b) in the effect of different follow-up periods on the self-rated health mortality relationship, and (c) in the relative importance of self-rated health and self-rated change in health in…

During the 2009-2010 school year, Marzano Research Laboratory (MRL) was commissioned by Promethean Ltd. to conduct a second year evaluation study of the effects of Promethean ActivClassroom on student academic achievement. This report describes the findings from the second year study along with aggregate findings from the first and second year…

Although the primary use of the speaking section of the Test of English as a Foreign Language™ Internet-based test (TOEFL® iBT Speaking test) is to inform admissions decisions at English medium universities, it may also be useful as an initial screening measure for international teaching assistants (ITAs). This study provides criterion-related…

By using a competing risks model, survival analysis methods can be extended to predict which of several mutually exclusive outcomes students will choose based on predictor variables, thereby ascertaining if the profile of risk differs across groups. The paper begins with a brief introduction to logistic regression and some of the basic concepts of…

A study was conducted to identify factors affecting student performance on the Texas Academic Skills Program (TASP), a state-mandated measure designed to assess students' basic skills and competencies. TASP and Assessment of Student Skills for Entry Transfer (ASSET) scores were analyzed for 328 academic track students from 6 community colleges in…

Armed Services Vocational Aptitude Battery (ASVAB) scores and final course grades from over 8,000 high school students at 50 schools were gathered to determine the validity of ASVAB Form 14 for the prediction of high school course grades. Grades were collected for courses taken during the academic year in which students were tested on the ASVAB…

This study compared the effectiveness of the BASIC programming language and the HyperCard authoring language on promoting problem-solving skills and the reduction of computer anxiety. Two groups of students participated in the study. One group (N=13) received instruction on BASIC and the other (N=8) on HyperCard. Students in both groups responded…

A multifactorial scale of attitudes toward statistics was developed, and factors related to attitudes toward statistics (objective and subjective mathematics background, anxiety, spatial ability, expectations, motivation, attitudes toward computers, teacher and course evaluation, sex and sex-role stereotypes, and major) were investigated for…

The use of linear regression to identify variables that predict grades of black students in precalculus and calculus I was studied at Xavier University of Louisiana, a historically-black institution. The predictive power of the variables for black males and females was also assessed. These two mathematics courses are prerequisites for students…

The purpose of this research was to determine, through multiple regression analysis, the strength of the relationship of each of six predictor variables (undergraduate major, undergraduate grade-point average (GPA), graduate major, graduate GPA, Graduate Record Examinations (GRE) Quantitative score, and GRE Verbal score) to academic achievement…

Occupational burnout was studied in two samples including 1,191 public school teachers and 190 principals and vice principals. The following factors were examined for their ability to predict burnout: overall job stress, job satisfaction, job challenge, and role clarity. Burnout was measured using the intensity dimension of the Maslach Burnout…

A 3-year study was conducted to document individual differences in computer interest and use among middle school students and the psychological and social processes that may contribute to these differences. A questionnaire was used to assess the computer interest and use of a sample of approximately 400 middle school students at the end of each of…