This study compares the relative power and robustness of the chi-square and Kolmogorov statistics with both the linear score scale and equal areas models. It is limited to the situation in which the mean and standard deviation are fixed by the hypothesis (a necessary constraint with the Kolmogorov tests). Two tables are presented which report the…

Discussion of citation behavior as a function of research characteristics focuses on an analysis of citation patterns of political scientists in relation to variations in their research approaches. Hypothesis tested are given, citation measures are described, analytic procedures are explained, and further research needs are suggested. (40…

Discussion of telecommuting motivations and constraints focuses on a study that analyzed differences in variables due to gender, occupation, and presence of children for 583 employees of the city of San Diego. Research hypotheses are discussed, and implications for forming policies to support telecommuting are suggested. (Author/LRW)

The double-deficit hypothesis of developmental dyslexia proposes that deficits in phonological processing and naming speed represent independent sources of dysfunction in dyslexia. The present article is a review of the evidence for the double-deficit hypothesis, including a discussion of recent findings related to the hypothesis. Studies in this…

Many important research hypotheses concern conditional relations in which the effect of one predictor varies with the value of another. Such relations are commonly evaluated as multiplicative interactions and can be tested in both fixed-and random-effects regression. Often, these interactive effects must be further probed to fully explicate the…

This paper provides a brief overview of what is currently known about families of children with Down syndrome. In addition, it highlights a number of issues that require further research if we are to have a thorough understanding of the impact of a child with Down syndrome on families as a system and on the individuals who make up that system.…

We present the results from an experiment that tests the perception of English consonantal sequences by Korean speakers and we confirm that perceptual epenthesis in a second language (L2) arises from syllable structure restrictions of the first language (L1), rather than linear co-occurrence restrictions. Our study replicates and extends Dupoux,…

Traditionally, confirmatory factor analytic models are tested against a null model of total independence. Using randomly generated factors in a matrix of 46 aptitude tests, this approach is shown to be unlikely to reject even random factors. An alternative null model, based on a single general factor, is suggested. In addition, an index of model…

Develops a testing procedure based on a model including treatment effects on residual variances. (Author/RC)

Critical issues and methodological problems concerning migration and mental health are examined. A model for determining predictor variables of depression in immigrant Mexican women is tested. Demographic, economic, and interpersonal factors are isolated as a subset of depression predictors within the model. (VM)

This study used multiple regression analysis to relate computer user satisfaction to communication monitor (CM) variables. Results indicate the variables of user expectations, manufacturers, and vendors are most significant in affecting overall satisfaction, whereas number of systems represented and not using communication monitors have least…

A path analytic model is hypothesized and tested to explain the effect of a series of intellective and nonintellective student attributes on high school achievement and college achievement. Patterns of predictability for male and female students are compared. (Author/GK)

Background: Postpartum depression (PPD) is considered a major public health problem that conveys risk to mothers and offspring. Yet PPD typically occurs in the context of a lifelong episodic illness, and its putative effects might derive from the child's exposure to other episodes, in pregnancy or later childhood. The aim of the study is to test…

The number of online education courses available to those seeking higher education have been increasing exponentially, offering opportunities to students who would not otherwise have been able to do so, as well as offering options for those who may have been able to attend classes on campus, but would prefer to pursue their course of study at…