A convention commonly used to describe interaction effects within moderated regression frameworks was examined through logical exposition and a Monte Carlo approach to simulate various moderator conditions. Results, which indicate that the convention may lead to incorrect inferences, are discussed in terms of interpreting moderator effects. (SLD)

This paper shows that redundancy maximization with J. K. Johansson's extension can be accomplished via a simple iterative algorithm based on H. Wold's Partial Least Squares. The model and the iterative algorithm for the least squares approach to redundancy maximization are presented. (TJH)

Using the Life Situation Survey, the perceived quality of life of 100 adults with spinal cord injury was compared with that of 120 adults with mental retardation. Comparison of descriptive statistics and a multiple regression analysis revealed possible differences in the impact of the two disabilities on specific life domains. (JPS)

Compares approaches to modeling ordinal outcome variables, including assumptions, interpretations, and limitations. Explores how the multiple regression approach with ordinal level data can compromise the understanding of the effects of the independent variables and of the ordinal level response. Provides applications with data from a multisite…

Objective: To estimate the impact of arthritis using a general health index and National Health Interview Survey (NHIS) data. Methods: Morbidity data came from NHIS Public Use data, from the years 19861988 and 1994. The data are 423 400 cases, representing 975 421 153 person-years. Quality of Well-being Scale (QWB) morbidity scores were imputed…

Background: An important element of many anti-bullying programmes is encouraging victims to tell someone about their predicament. Research has already reported prevalence of telling, who/when children tell and efficacy of telling. However, seeking help can be viewed as a coping behaviour, and coping processes such as appraisal and emotion may be…

A demonstration, which shows that the graphing calculation can greatly supplement the computer and often eliminates the need for computers and science, is given. The graphic calculator is a handheld computer, more powerful than most sophisticated computer of 25 years ago.

Context: Prior study suggests that contextual characteristics of medical schools (eg, state demographics, public vs private, NIH research effort) predict output of rural physicians without also considering the effects of the medical schools? own policies and programs. Purpose: This study examines medical school commitment to rural policies and…

Supported by Bandura's social cognitive theory, our study examined personal factors and environmental factors that impact adults' ability to assist youth in developing leadership. We introduce youth leadership development self-efficacy (YLD-SE) as a new construct for use in leadership research. A 7-item scale to measure YLD-SE was developed and…

This study examined the factors that influence consumer satisfaction with mobile telephone use in Malaysia. The validity of the study's constructs, criterion, and content was confirmed. Construct validity was verified through the factor analysis with a total variance of 73.72 percent explained by all six independent factors. Content validity was…

An electronic portfolio system, designed to serve as a resource-based learning space, was tested in a fifth-grade science class. The control-group students accessed a traditional folder-based information display in the system and the experimental-group students accessed a concept map-based information display to review a science portfolio. The…

The purpose of this study is to determine the extent to which cognitive and non-cognitive measures predict academic success for conditionally-admitted students enrolled in a comprehensive public university. Stepwise multiple regression analyses reveal that one cognitive variable (high school grade point average) and two non-cognitive measures…

This study examined the relationship between morphological awareness and reading comprehension in English among Spanish-speaking English language learners (ELLs) followed from fourth through fifth grade. Students' ability to decompose derived words while reading was assessed using an experimental task. Multiple regression analyses were used to…

Vocational psychology has generated a number of concepts and assessment instruments considered to reflect ability self-concept (i.e., one's view of one's own abilities) relevant to career development. These concepts and measures often are categorized as either self efficacy beliefs or self-estimated (i.e., self-rated, self-evaluated) abilities.…

This study proposes relationships between job satisfaction, affective commitment (organization, supervisor and workgroup), and exchange relations with supervisor, organization and workgroup members among extension personnel. Perceived self-esteem (SE) is hypothesized to moderate relations between the social exchange foci and the corresponding…