The Influence of Differing the Paths to an Incentive on Third Graders’ Reading Achievement and Attitudes

The purpose of this study was to examine the impact of four incentive paths on third graders’ reading vocabulary and comprehension achievement and recreational and academic reading attitude. One hundred and twenty third-grade students were assigned to one of four incentive path treatment conditions. Data were analyzed using analysis of covariance (ANCOVA) with Fisher's least significant difference (LSD) post hoc comparisons. An effect size of .09 was calculated using a partial η² (eta squared) statistic. Findings indicated that the four incentive path treatment conditions did not differentially impact student vocabulary, comprehension, and recreational reading. A significant difference for students’ academic reading attitudes was identified across the four incentive path treatment conditions.     

The validity of psychomotor vigilance tasks of less than 10-minute duration

The 10-min psychomotor vigilance task (PVT) has often been used to assess the impact of sleep loss on performance. Due to time constraints, however, regular testing may not be practical in field studies. The aim of the present study was to examine the suitability of tests shorter than 10 min. in duration. Changes in performance across a night of sustained wakefulness were compared during a standard 10-min PVT, the first 5 min of the PVT, and the first 2 min of the PVT. Four performance metrics were assessed: (1) mean reaction time (RT), (2) fastest 10% of RT, (3) lapse percentage, and (4) slowest 10% of RT. Performance during the 10-min PVT significantly deteriorated with increasing wakefulness for all metrics. Performance during the first 5 min and the first 2 min of the PVT deteriorated in a manner similar to that observed for the whole 10-min task, with all metrics except lapse percentage displaying significant impairment across the night. However, the shorter the task sampling time, the less sensitive the test is to sleepiness. Nevertheless, the 5-min PVT may provide a viable alternative to the 10-min PVT for some performance metrics.     

Everyday magical powers: the role of apparent mental causation in the overestimation of personal influence

These studies examined whether having thoughts related to an event before it occurs leads people to infer that they caused the event--even when such causation might otherwise seem magical. In Study 1, people perceived that they had harmed another person via a voodoo hex. These perceptions were more likely among those who had first been induced to harbor evil thoughts about their victim. In Study 2, spectators of a peer's basketball-shooting performance were more likely to perceive that they had influenced his success if they had first generated positive visualizations consistent with that success. Observers privy to those spectators' visualizations made similar attributions about the spectators' influence. Finally, additional studies suggested that these results occur even when the thought-about outcome is viewed as unwanted by the thinker and even in field settings where the relevant outcome is occurring as part of a live athletic competition.     

Motor and functional skills of children with developmental coordination disorder: a pilot investigation of measurement issues

This paper reports on the motor and functional outcomes of 20 children with developmental coordination disorder (DCD) aged 4-8 years consecutively referred to a pediatric physiotherapy service. Children with a Movement ABC (M-ABC) score less than the 15th percentile, and with no concurrent medical, sensory, physical, intellectual or neurological impairments, were recruited. The Motor Assessment Outcomes Model (MAOM) [Coster and Haley, Infants and Young Children 4 (1992) 11] provided the theoretical base for measurement selection, and preliminary findings at the activities and participation levels of the model are reported in this article. Children with DCD performed at the lower end of the normal range on the Peabody Developmental Motor Scales (fine motor total score) (M=85.65, SD=12.23). Performance on the Visual Motor Integration Test (VMI) standard scores was within the average range (M=96.15, SD=10.69). Videotaped observations of the children's writing and cutting indicated that 29% were left-handed and that a large proportion of all children (31%) utilized unusual pencil grasp patterns and immature prehension of scissors. Measurement at the participation level involved use of the Pictorial Scale of Perceived Competence and Social Acceptance (PCSA) and Pediatric Evaluation of Disability Inventory (PEDI). Overall, these young children rated themselves towards the more competent and accepted end of the PCSA over the dimensions of physical and cognitive competence and peer and maternal acceptance. The PEDI revealed generally average performance on social (M=49.98, SD=16.62) and mobility function (M=54.71, SD=3.99), however, self-care function was below the average range for age (M=38.01, SD=12.19). The utility of the MAOM as a framework for comprehensive measurement of functional and motor outcomes of DCD in young children is discussed.     

Gender Differences in the Accuracy of Grade Expectancies and Evaluations

Participants were 131 (69 women, 62 men)students in Introductory Psychology, Social Psychology,and Computer Science courses. Eighty-six percent of thesample was Caucasian. The goals of this study were to assess (a) how accurate students'preexamination expectancies and postexamination gradeevaluations are and whether gender differences in theaccuracy of expectancies and grade evaluations onexaminations exist, (b) whether expected grades predictpostexamination grade evaluations even with actualgrades controlled (self-consistency effect), and (c)whether students' grade expectations and evaluationsbecome more accurate with experience. Throughout thecourse of a semester, students estimated their gradesfor each of their examinations. Students overestimatedtheir grades at all points in the semester, although women in Introductory Psychology overestimatedtheir grades less than men did. Students' expectedgrades were a better predictor of their postexaminationgrade evaluations than were their actual grades. For Introductory Psychology students,expectancies and grade evaluations became more accurateas the semester progressed. The importance of accurateself-perceptions regarding academic performance isdiscussed.     

An epistemological use of nonstandard analysis to answer Zeno's objections against motion

Three of Zeno's objections to motion are answered by utilizing a version of nonstandard analysis, internal set theory, interpreted within an empirical context. Two of the objections are without force because they rely upon infinite sets, which always contain nonstandard real numbers. These numbers are devoid of numerical meaning, and thus one cannot render the judgment that an object is, in fact, located at a point in spacetime for which they would serve as coordinates. The third objection, an arrow never appears to be moving, is answered by showing that it only applies to a finite number of instants of time. A theory of motion is also advanced; it consists of a finite series of contiguous infinitesimal steps. The theory is immune to Zeno's first two objections because the number of steps is finite and each lies outside the domain of observation. Present motion is hypothesized to be an unobservable process taking place within each step. The fact of motion is apparent through a summing (Riemann integration) of the steps.     

DNA markers associated with general and specific cognitive abilities

Multivariate quantitative genetic research suggests a hierarchical model of cognitive abilities where genetic effects are largely general, cutting across most cognitive abilities. Some genetic effects, however, are specific to certain cognitive abilities. These results lead to a hypothesis for molecular genetic research: Although most genes associated with one cognitive ability will be related to other cognitive abilities, some genes will be specific to a particular cognitive ability. The current research explored this hypothesis in an analysis of data in specific cognitive abilities from 86 children from 6 to 12 years of age from a larger allelic association study of general cognitive ability. Eight DNA markers were entered simultaneously in separate multiple regression analyses predicting each of four specific cognitive ability factors (Verbal, Spatial, Perceptual Speed, Memory), as well as WISC-R subtest scores. Four marjers (CTGB33, EST00083, HLA, and SOD2) showed similar effects across the cognitive ability scales, suggesting that they are related to general cognitive ability (g). These associations became negligible when the effects of ‘g’ (WISC-R IQ) were removed. Three markers (ADH5, DM, and NGFB) continued to be significantly associated with specific cognitive ability scales after the effects of ‘g’ were removed. Although preliminary, these molecular genetic results support the hierarchical model predicted by quantitative genetic research.     

Accounting for Racism Against Maori in Aotearoa/New Zealand: A Discourse Analytic Study of the Views of Maori Adults

Previous discursive studies on the construction, reproduction and justification of racism have focussed on the accounts of perpetrators to the exclusion of the targets of racist talk. The current study redresses this imbalance by exploring the talk of targets of racism in Aotearoa/ New Zealand. Interviews were conducted with 24 participants, 19 Māori and five Pākehā partners. Our social constructionist discourse analysis identifies four primary discourses that participants drew on to account for racism, two of which resonated strongly with the literature and two which spotlighted new areas of interest. A discourse of ignorance functioned to allow participants to account for racism by highlighting Pākehā ignorance of Māori people and culture, and of racism itself. The second discourse implicated the media for emphasising negative Māori news, avoiding positive Māori achievements and promoting negative stereotypes. A third discourse constructed Pākehā as possessing an innate sense of superiority which contributed to racism, and fourthly, institutionalised racism was used by participants to construct a colonial society which continued to marginalise Māori. Finally we consider the implications of these findings with respect to existing literature, some implications around the intersectionality and relationship between these discourses, and the importance of potential gains in understanding made possible through the study of targets' perspectives. Copyright © 2015 John Wiley & Sons, Ltd.