A QuickBASIC program is described that can be used to conduct Dunnett-like comparisons on a set of independent proportions. The statistical method used, based on Levy's statistical method (1975), is an extension of the well-known Dunnett test for multiple comparisons on means. (Author/SLD)

A formula that is simpler to calculate than the Kappa statistic of J. Cohen is presented for the situation where each subject in an experiment is rated on a nominal scale by two or more judges. Equivalence with Pearson's chi-square statistic in this situation is demonstrated. (SLD)

A total of 685 articles in "Mental Retardation,""American Journal of Mental Deficiency," and "American Journal on Mental Retardation" from 1980 through 1989 were examined. The mental retardation classification system developed by the American Association on Mental Retardation was used in over 50 percent of the…

The effect of reducing the number of score groups in the matching criterion of the Mantel-Haenszel procedure when screening for differential item functioning was investigated with a simulated data set. Results suggest that more than modest reductions cannot be recommended when ability distributions of reference and focal groups differ. (SLD)

This study examined the influence of challenge-based recreation on the collective efficacy of families with at-risk adolescents. Thirty-four families participated in one of three experimental groups and a control group. Collective family recreation efficacy and conflict resolution efficacy increased for families in all three recreation contexts.…

The purpose of this study is to demonstrate that performance assessment increases educational value in teaching-learning activities using a quasi-experimental research design. In this research, the three measurement criteria of educational value are suggested as "improvement & advancement," "sincerity & enthusiasm," and "individuality &…

The purpose of this study was to assess phonological and morphosyntactic change in children with co-occurring speech and language impairments using different goal attack strategies. Participants included 47 preschoolers, ages 3;0 (years;months) to 5;11, with impairments in both speech and language: 40 children in the experimental group and 7 in a…

Reading therapy has been shown to be effective in treating reading disabilities (RD) in dyslexic children, but little is known of its use in subjects with mild mental retardation (MR). Twenty adult volunteers, with both RD and mild MR, underwent 60 consecutive weeks in a cognitive remediation program, and were compared with 32 untreated control…

This study was designed to examine the effects of adults' labeling and use of social groups on preschool children's intergroup attitudes. Children (N=87, aged 3-5) attending day care were given measures of classification skill and self-esteem and assigned to membership in a novel ("red" or "blue") social group. In experimental classrooms, teachers…

The authors investigated the development of metacognitive skill (MS) of 43 children from preschool to the 2nd grade (6-8 years of age) in a problem-solving situation. The children's skill to direct, guide, and monitor their performance in a play-like problem-solving context was evaluated in 3 experimental groups of preschool children with high,…

The reported study aimed to identify the effects of two 10-week intervention programs on fundamental locomotor skill performance in kindergarten children. Seventy-five children with mean age 5.4 plus or minus 0.5 years participated. Experimental Group A followed a movement program, experimental Group B followed a music and movement program, and…

A tuition-free, vocational, English as a second language (ESL) program offered at a large community college suffers from high attrition as well as student dissatisfaction with curriculum. The purpose of this quasi-experimental, longitudinal study was to assess the effectiveness of a specific ESL curriculum supplement as an intervention to…

Medical schools have reduced the time allotted to anatomy instruction. Consequently, schools engage students in more independent settings using information and communication technologies (ICT). There has been limited research in the use of video aids, a type of ICT, to enhance anatomy examination performance. The objective of this study is to…

Although reattribution training has been shown to be very useful in improving learning, researchers disagree on what mediates the effects. As to the possible mediating factors, the prominent theories suggest factors such as expectations, notions of intelligence, self-efficacy or anxiety. However, this article proposes an alternative mediating…

The purpose of this study was to investigate the effects of multiple intelligences (MI) teaching approach on 8th Grade students' achievement in and attitudes toward science. This study used a pretest-posttest control group experimental design. While the experimental group (n=30) was taught a unit on acids and bases using MI teaching approach, the…