Predictive factors of manual dexterity and cognitive performance at 17 years: a 10-year longitudinal study in a rural area of France

Studies of predictive factors of manual dexterity in adolescents and young adults are lacking. The present longitudinal study reports the relationship between cognitive and behavioural assessments at age 7 years and the schooling, cognitive performance, and manual dexterity at age 17 years. The participants were 65 schoolchildren, 30 boys and 35 girls, from a rural area in France. Assessment at age 7 years included the McCarthy scales and questionnaires measuring the behavior of the child, completed by the mother, the teacher, and the assessing psychologist. Assessment at age 17 years included schooling situation (whether they were in high school or not), cognitive testing (WAIS-R, Trail Making, Verbal Fluency, Cancel H, Stroop, Memory Assessment Scales), and manual dexterity testing (dynamometer, Finger Tapping, Santa Ana Test, Purdue Pegboard). After controlling for effects of parental education and IQ, a negative teachers' rating of children's behaviour and abilities in first-grade (7 years) was correlated with early cessation of schooling, but also, unexpectedly, with higher scores for manual dexterity at 17 years. Manual dexterity was not related to cognitive performance at 17 years. It is suggested that the relationship between manual and cognitive performance varies during development. Although manual exploratory behaviour is an important correlate of early cognitive development, manual dexterity is probably not related to later academic performance.     

Communicative interactions, knowledge of a second language, and theory of mind in young children

In this study, the authors explored the effect that particular patterns of communicative interactions may have on young children's understanding of representations and the link between knowledge of a 2nd language and theory of mind. The authors tested 140 single language users and 57 dual language users (aged 3-4 years old) on a deceptive task with 3 experimental conditions. In the deceptive-context condition, an experimenter made a reference to the deceptive object. In the older peer condition, an experimenter made a reference to an older child who was actively participating in the experimental manipulations. In the deceptive-interaction condition, the experimenter made reference to his or her own deceptive interventions. The most significant finding was that knowledge of a 2nd language significantly improved young children's understanding of both mental and nonmental representations. Moreover, the results indicated that an experimenter's reference to a deceptive interaction greatly facilitated 3-year-old children's understanding of false belief.     

Measurement issues associated with conditional reasoning tests: An examination of faking

Conditional reasoning (CR) is a new item format that measures personality by indirectly assessing reliance upon the cognitive biases associated with specific traits (James et al., 2005). Previous research suggests that, relative to self-report measures, responses on CR-based measures are more difficult to distort (LeBreton, Barksdale, Robin, & James, 2007). The issue of response distortion in the context of CR-based measures was evaluated in two studies. Study 1 (within-subjects) and Study 2 (between-subjects) both investigated whether responses on a CR-based test of addiction could be faked when indirect assessment was upheld. Results of both studies indicated that, unlike a self-report measure of a similar construct, the CR-based measure was unaffected by response distortion.     

Post-Traumatic Stress Disorder as a Consequence of a Toxic Spill in Northern California

This study examined the development of post-traumatic stress disorder (PTSD) and associated features in residents of Dunsmuir, California, following a toxic spill. Classification of PTSD was based on a cutoff score from the Impact of Event Scale. It was predicted that greater exposure to the spill would increase the risk of PTSD and associated symptoms among spill residents; that those classified with PTSD would report more symptoms than would those without PTSD and controls; and that litigants would be classified with PTSD more than would nonlitigants. Results suggest that spill residents classified with PTSD had greater levels of tension, depression, anxiety, anger, fatigue, and confusion than did spill residents without PTSD and control residents with and without PTSD. Spill residents with PTSD reported more memory problems and sleep disorders than did those without PTSD and control residents with and without PTSD. Measures of physiological arousal showed that spill residents had higher systolic blood pressure several hours after a stressful interview than did control residents without PTSD. Pulse rates several hours after a stressful interview were higher for spill residents with and without PTSD than for control residents with PTSD. Results suggest that exposed residents are at risk for developing PTSD and associated symptoms.     

Assessment center construct-related validity: Stepping beyond the MTMM matrix

Recent Monte Carlo research has illustrated that the traditional method for assessing the construct-related validity of assessment center (AC) post-exercise dimension ratings (PEDRs), an application of confirmatory factor analysis (CFA) to a multitrait-multimethod matrix, produces inconsistent results [Lance, C. E., Woehr, D. J., & Meade, A. W. (2007). Case study: A Monte Carlo investigation of assessment center construct validity models. Organizational Research Methods, 10, 430-448]. To avoid this shortcoming, a variance partitioning procedure was applied to the examination of the PEDRs of 193 individuals. Overall, results indicated that the person, dimension, and person by dimension interaction effects together accounted for approximately 32% of the total variance in AC ratings. However, despite no apparent exercise effect, the person by exercise interaction accounted for approximately 28% of the total variance. Although these results are drawn from a single AC, they nevertheless provide general support for the overall functioning of ACs and encourage continued application of variance partitioning approaches to AC research. Implications for AC design and research are discussed.     

The Hill Interaction Matrix

The Hill Interaction Matrix represents a system of classifying group process and group progress, which has been empirically derived and systematically researched. Leadership style, group composition, and group development are simultaneously quantified through the use of this matrix. It represents an attempt to objectify the art of group therapy.     

A Statistical Correction to 20 years of Banding

Statistically based banding is often considered a viable method for minimizing adverse impact in test‐based employment decisions. By utilizing the standard error of the difference (SED), scores are equated based on the assumption that there is substantial unreliability in any single observed score. However, based on the derivations of Dudek, the formula commonly used to calculate the standard error of measurement (SEM) – a component that is typically used to calculate the SED – is incorrect. Specifically, utilizing the SEM when calculating the SED produces a band of observed scores around a true score, not a band of true scores around an observed score as would be appropriate for banding. This study compares the differences between banding‐based selection decisions when the appropriate SED formula – which utilizes the standard error of estimate – is and is not applied. Overall, results suggest that utilizing the appropriate formula for calculating the SED produces substantial variations in employment decisions. The potential legal and ethical implications of these discrepancies are discussed.     

Short-term memory in autism spectrum disorder

Three experiments examined verbal short-term memory in comparison and autism spectrum disorder (ASD) participants. Experiment 1 involved forward and backward digit recall. Experiment 2 used a standard immediate serial recall task where, contrary to the digit-span task, items (words) were not repeated from list to list. Hence, this task called more heavily on item memory. Experiment 3 tested short-term order memory with an order recognition test: Each word list was repeated with or without the position of 2 adjacent items swapped. The ASD group showed poorer performance in all 3 experiments. Experiments 1 and 2 showed that group differences were due to memory for the order of the items, not to memory for the items themselves. Confirming these findings, the results of Experiment 3 showed that the ASD group had more difficulty detecting a change in the temporal sequence of the items.