Stuart’s tau measure of effect size for ordinal variables: Some methodological considerations

The reporting of measures of effect size has become increasingly important in psychology. A Monte Carlo resampling permutation procedure is introduced to find near-optimum maximum values for Stuart’s τ _c measure for two-way ordinal contingency tables, also termed Kendall’s τ _c since Kendall introduced τ _a and τ _b . Comparisons between resampling and exact procedures demonstrate the accuracy and utility of resampling measures of effect size for two-way ordinal contingency tables. The resampling procedure is shown to be more precise than the traditional method of standardizing τ _c .     

Promoting Student Cognitive Development

This study focused on a theoretically grounded counselor preparation curriculum that was designed to enhance the moral reasoning and cognitive complexity of students as well as teach them the basic skills and theories of counselor education. The curriculum for the counselor training was rooted in a teaching–learning framework that included conditions for facilitating cognitive–developmental growth and skill and theoretical training components. The purpose of the study was to evaluate the developmental effects of the counselor training program as measured in 2 domains of cognitive development: conceptual level and level of moral reasoning. The participants were assessed at 3 different times: prior to entering the counseling program, 1-year into the program, and the month marking the completion of their 2nd year in the program. The Paragraph Completion Method (PCM) and the Defining Issues Test (DIT) were used as estimates of cognitive–developmental level. Analysis of the results revealed a significant gain for the group on the PCM between the 2nd and 3rd assessments and a positive but nonsignificant trend for the DIT.     

Racial-Ethnic Differences in Genetic Amniocentesis Uptake

The objective of this study was to determine the role of health beliefs in genetic amniocentesis acceptance in a diverse racial-ethnic population. Participants completed a previously-validated questionnaire consisting of three sections: (1) demographics, (2) amniocentesis knowledge, and (3) health beliefs, which assessed perceived susceptibility, seriousness of potential impact, benefits of testing, and barriers to testing. The results showed that Hispanic women were less likely to accept amniocentesis (51.5% vs. Caucasian 82.8%, African American 82.9%, Asian 82.8%). Education level was the only demographic factor higher among acceptors. Women who accepted amniocentesis had higher perceived seriousness, susceptibility, and benefits HBM scores and higher knowledge scores than women who declined. HBM scores and knowledge predicted the amniocentesis decision correctly 91.5% of the time. Individual health beliefs and knowledge play a greater role in genetic amniocentesis acceptance than do demographic factors such as race-ethnicity.     

Pigeons discriminate continuous versus discontinuous line segments

Three experiments examined various facets of the perception of continuous and discontinuous line segments in pigeons. Pigeons were presented with 2 straight lines that were interrupted by a gap. In some instances, the lines were the same angle and were positioned so that they appeared (to human observers) to form a continuous line. In other instances, the lines were different angles or the same angle but spatially misaligned. The birds were trained to classify each stimulus as continuous or discontinuous using a go/no-go procedure. A series of tests followed in which the birds received novel discontinuous displays made up of familiar line segments, continuous and discontinuous stimuli made up of novel line segments (novel straight lines or curved lines), and familiar displays in which the gap was covered with a gray square. Results from the tests indicated that 2 of the 3 pigeons had learned a continuous-discontinuous categorization and that they appeared to use the relationship between the 2 line segments in discriminating the displays.     

The Presentation of Masculinity in Everyday Life: Contextual Variations in the Masculine Behaviour of Young Irish Men

The present study was designed to examine longitudinal predictors of moral courage in late adolescence. Supportive, responsive parenting, which was measured through home observations and family reports in the fifth grade year, predicted girls’ willingness in late adolescence to speak up or take action when they witnessed or experienced injustice or harm. In contrast, parenting that was harsh and restrictive predicted both girls’ and boys’ later reticence in those circumstances. Further, the effects of earlier parenting were mediated by individual and peer-related factors. Specifically, social competence with peers in fifth grade and self-esteem in twelfth grade mediated the effects of parenting on both moral courage and moral reticence for late adolescent girls, and self-esteem in fifth grade mediated the effects of parenting on moral reticence for late adolescent boys.     

Long-term perceptual memory for briefly exposed words as a function of awareness and attention.

Two experiments investigated the possibility that perceptual memory for words is dependent on level of awareness of those words. In Experiment 1, subjects attempted to report briefly exposed words in a study phase and then identify words that faded into view in a test phase. Old words appeared in both the study and test phases, whereas new words appeared only in the test phase. Perceptual memory, indexed as the faster identification of old vs. new words, was observed only for words correctly reported in the study phase. In the study phase of Experiment 2, words were flanked by digits, and the distribution of attention between words and digits was varied. Perceptual memory increased from nil to high levels as more attention was allocated to the words. These findings suggest that long-term perceptual memory is dependent on level of awareness of words in the study phase.