This study investigated the effects of gameplaying on fifth-graders' maths performance and attitudes. One hundred twenty five fifth graders were recruited and assigned to a cooperative Teams-Games-Tournament (TGT), interpersonal competitive or no gameplaying condition. A state standards-based maths exam and an inventory on attitudes towards maths…

Objective: The goal of this study was to examine the association between sexual abuse (SA) and initiation, cessation, and current cigarette smoking among a large representative adult population in France. Method: A random sample size of 12,256 adults (18-75 years of age) was interviewed by telephone concerning demographic variables, health…

Status, which implies a positive evaluation by other members of the group, remains one aspect of group structure that has not received much theoretical or empirical evaluation. Although a number of researchers have focused on status and its emergence, the influence of the number of group members who share status has never been explored. This paper…

Although the role of education in an economy is emphasized in theoretical studies, empirical literature finds mixed results for the relationship between growth and education. We examine the relationship between Gross Domestic Product (GDP) and enrollments in primary, secondary, and high schools, as well as universities in Turkey for 1937-1996, in…

The study explored whether children with high functioning autism (HFA), Asperger syndrome (AS), and pervasive developmental disorder not otherwise specified (PDD-NOS) can be differentiated on the Children's Communication Checklist (CCC). The study also investigated whether empirically derived autistic subgroups can be identified with a cluster…

The present experiments assessed the effects of different manipulations between cue preexposure and cue-outcome pairings on latent inhibition (LI) in a predictive learning task with human participants. To facilitate LI, preexposure and acquisition with the target cues took place while participants performed a secondary task. Presentation of…

The authors compare the operating characteristics of the bootstrap-F approach, a direct extension of the work of Berkovits, Hancock, and Nevitt, with Huynh's improved general approximation (IGA) and the Brown-Forsythe (BF) multivariate approach in a mixed repeated measures design when normality and multisample sphericity assumptions do not hold.…

We describe a principled way of imposing a metric representing dissimilarities on any discrete set of stimuli (symbols, handwritings, consumer products, X-ray films, etc.), given the probabilities with which they are discriminated from each other by a perceiving system, such as an organism, person, group of experts, neuronal structure, technical…

A representative sample of 800 employers in the United Kingdom were surveyed by telephone to determine their attitudes toward, recruitment of, and rejection of unemployed job seekers. The employer sample was selected to be representative from the standpoints of sector, firm size, and firm location. Twenty employers participated in face-to-face…

Problem solving in mathematics incorporates abstract thinking skills, number logic skills, and a nearly endless list of other factors. One problem-solving task required in university-level mathematics courses is integration. This study investigated instructor presentation of a specific problem-solving strategy and whether it impacted performance…

C. L. Olson (1976, 1979) suggests the Pillai-Bartlett trace (V) as an omnibus multivariate analysis of variance (MANOVA) test statistic for its superior robustness to heterogeneous variances. J. Stevens (1979, 1980) contends that the robustness of V, Wilk's lambda (W) and the Hotelling-Lawley trace (T) are similar, and that their power functions…

Researchers on the Lasting Benefits Study (LBS) are tracking students who participated in Tennessee's K-3 Student/Teacher Achievement Ratio (STAR) Project (1985-89) as they continue into later grades. Project STAR was a statewide experiment conducted to demonstrate the effects of reduced student/teacher ratios (15:1) on student achievement…

To test the theory of mental calibration for mental addition it was hypothesized that the mean reaction time for problems in homogeneous sets will be faster than for problems in heterogeneous sets and that the reaction time was inversely related to ability and development (grade level) and independent of gender. Three sets of 40 addition problems…

A study was conducted at Antelope Valley College in California to explore the use of multiple measures in placement recommendations by examining variables potentially associated with success in writing, reading, and math courses. The study sample was all students who were assessed and enrolled in reading and writing courses in fall 1990, spring…

This study investigated the effects of course structure variables on the computer anxiety, confidence, and attitudes of college students. Course structure variables include the number of weeks the course met (course length) and the number of meetings per week (course frequency). The effects of differences in instructors' use of anxiety reducing…