Describes study of university students that investigated the effects of two direct instruction techniques in a computer-based algebra lesson: the cognitive routine (CR) and the Corrective Feedback Paradigm (CFP). Research design is explained, results are analyzed, and further research is suggested. (nine references) (LRW)

A nonparametric multicategorical model for multiple-choice data is proposed as an extension of the binary spline model of J. O. Ramsay and M. Abrahamowicz (1989). Results of two Monte Carlo studies illustrate the model, which approximates probability functions by rational splines. (SLD)

In studies of relatives, conventional multiple regression may not be appropriate because observations are not independent. Obtaining estimates of regression coefficients and correct standard errors from these populations through a structural equation modeling framework is discussed and illustrated with data from twins. (SLD)

The hypothesis that college grade point average (GPA) is predictable by student time management was tested. Ninety college students completed a time-management questionnaire in 1983. Four years later, comparison with cumulative GPA indicated that time-management practices may influence achievement. Time management was a better predictor than…

How technical demographic analysis can inform and confuse judicial considerations of voting rights principles is illustrated in a review of a 1990 case brought against Los Angeles County (California). A postscripted article considers whether the court involved should rely on after-census estimates for redistricting. (SLD)

Explores the attrition of different aspects of Swedish grammar. Empirical data from bilingual expatriate students are compared to data from monolingual Swedish aphasic patients. The students' noun phrase morphology had undergone attrition, but not their word order. For the aphasics, word order attrition was combined with unaffected noun phrase…

Describes an empirical evaluation that investigated the criteria by which designers of human-machine systems evaluate design information. Professional designers of nuclear power plant control rooms rated hypothetical information search questions in terms of relevance, importance, cost, and effort based on Rouse's model of information search…

Data on self-reported perceived exposure to anti-smoking messages were collected from 1,608 high school students surveyed through the ASPIRE (A Smoking Prevention Interactive Experience) Program in Houston, Texas. Data collection took place between October 2002 and March 2003. Logistic regression identified that African Americans perceived…

It has been more than a decade since the U.S. Congress enacted the "Student Right-to-Know and Campus Security Act," which requires colleges and universities to make public their six-year degree completion rates. Based on the "Student Right-to-Know and Campus Security Act," prospective students and their parents are being encouraged to make…

The authors studied beginning undergraduate actuarial concentrators in a business college. They identified four variables (math Scholastic Aptitude Test [SAT] score, verbal SAT score, percentile rank in high school graduating class, and percentage score on a college mathematics placement exam) that were available for entering college students that…

Objectives: Physical punishment, as a means of disciplining children, may be considered a mild form of childhood adversity. Although many outcomes of physical punishment have been investigated, little attention has been given to the impact of physical punishment on later adult psychopathology. Also, it has been stated that physical punishment by a…

The roles that peers play in the decision to go to college are not well understood. Logistic regression is used to explore the role that peers play in the college-going decisions of a sample of low-income urban minority public high school graduates drawn from the National Education Longitudinal Study (NELS:88) database. Friends' plans are found to…

This study examines the effects of a systematically designed innovation strategy on teachers implementation of a sex education curriculum and its related determinants. A quasi-experimental group design was used to assess the effectiveness of the innovation strategy. Teachers filled in questionnaires on the determinants of curriculum implementation…

Background: Most children with Tourette's syndrome (TS) experience a significant decline in tic symptoms during adolescence. Currently no clinical measures have been identified that can predict whose tic symptoms will persist into adulthood. Patients with TS have deficits on neuropsychological tests involving fine-motor coordination and…

Background: This investigation aimed at examining, through an epidemiological study, the social demographic, family and individual determinants of behaviour problems in preschool children. Method: Six hundred and thirty-four children, age four years, and their mothers, belonging to a cohort of 5,304 children being followed from birth, took part in…