The impact of misleading questions on eyewitness memory in children and adults

The study examined developmental patterns of the negative effect of misleading post‐event information in two different kinds of eyewitness interviews. A total of 284 subjects aged between five and 64 years were shown a short video about a theft and three weeks as well as four weeks later questioned about it. The social pressure in the interview after three weeks was manipulated by asking half of the subjects suggestive and misleading questions. The other half was asked open‐ended and unbiased questions. In the neutral interview four weeks later, all subjects were asked the same set of recognition questions about the event. The results revealed that preschoolers in particular had problems with the interplay between cognitive and social factors (social pressure induced through the wording of the misleading questions) in the interview setting after three weeks. In the neutral recognition test, all age groups were shown to suffer from prior misinformation to about the same extent. However, with an exception in the group of 6‐year‐old children the negative effect of prior misinformation on the accuracy of recognition proved to be due to items that were peripheral to the observed event. Copyright © 2000 John Wiley & Sons, Ltd.     

Relationship‐based intervention with at‐risk mothers: Factors affecting variations in outcome

A previous group comparison had shown that in families experiencing the UCLA Family Development Project intervention as opposed to a group that did not, mothers became more responsive to the needs of their infants, and the infants were more secure in their attachment to their mothers. The present study asks whether variations in these outcomes following participation in a relationally based intervention are anticipated by maternal involvement in the intervention, partner support, personality dimensions, and mother–infant interactions that were assessed early in the intervention process. The sample consists of 46 mothers at risk for inadequate parenting who also were poor and generally lacked support. It was found that variations at 12 months of age in the child's secure response to separation, his or her expectation of being cared for (felt security), and the mother's responsiveness to need are anticipated by variations in the mother's 6‐ to 12‐month involvement in the home‐visiting intervention, the quality of her partner's support as measured at six months, and her own trust, ability to form stable relationships, and lack of self doubt. Parents who, at one month, were responsive to the needs of their more soothable babies were more likely to have secure children at 12 months, but these associations were not as robust as those summarized above. © 2000 Michigan Association for Infant Mental Health.     

Sensitivity analysis in connectionist modeling

The application of sensitivity analysis methodology to connectionist modeling is discussed. Sensitivity analysis examines the functional relationship of parameters in dynamic systems to specify the interactions of parameters and the boundary conditions of dynamic system models. Sensitivity analysis is contrasted with parameter estimation. Reasons to favor sensitivity analysis in connectionist modeling are discussed. Six steps for sensitivity analysis are detailed with examples from the modeling of short- and long-term memory retrieval.     

An interactive graphics approach to dimensional analysis

This paper describes an interactive approach to dimensional analysis. This approach permits the researcher and student to inspect alternative spatial representations along with a wide range of rotations. Some understanding of problems inherent in multidimensional sealing is presented to help provide an appreciation of the utility of the method.     

STEP—A System for Teaching Experimental Psychology using E-Prime

Students in psychology need to learn to design and analyze their own experiments. However, software that allows students to build experiments on their own has been limited in a variety of ways. The shipping of the first full release of the E-Prime system later this year will open up a new opportunity for addressing this problem. Because E-Prime promises to become the standard for building experiments in psychology, it is now possible to construct a Web-based resource that uses E-Prime as the delivery engine for a wide variety of instructional materials. This new system, funded by the National Science Foundation, is called STEP (System for the Teaching of Experimental Psychology). The goal of the STEP Project is to provide instructional materials that will facilitate the use of E-Prime in various learning contexts. We are now compiling a large set of classic experiments implemented in E-Prime and available over the Internet from http://step.psy.cmu.edu. The Web site also distributes instructional materials for building courses in experimental psychology based on E-Prime.     

The Relation of Cognitive Ability and Personality Traits to Assessment Center Performance

The aim of the current study was to examine cognitive ability and personality correlates of assessment center exercise ratings. The sample included 429 individuals who participated in a 2-day management development assessment center during a 5-year period. The assessment center yielded scores on 8 exercises. Assessees also completed a measure of cognitive ability (Watson-Glaser Critical Thinking Appraisal) and the California Psychological Inventory (CPI). The CPI scales were incorporated into 4 of the Big Five personality factors for easier interpretation. Our hypotheses were partially supported since ratings of exercises that were largely interpersonal in nature tended to correlate with interpersonal personality constructs (emotional stability, extraversion, and openness to experience), and ratings of cognitive problem-solving exercises correlated with cognitive ability and conscientiousness.     

Evaluation of publication bias in response interruption and redirection: A meta-analysis

Publication bias is the disproportionate representation of studies with large effects and statistically significant findings in the published research literature. If publication bias occurs in single-case research design studies on applied behavior-analytic (ABA) interventions, it can result in inflated estimates of ABA intervention effects. We conducted an empirical evaluation of publication bias on an evidence-based ABA intervention for children diagnosed with autism spectrum disorder, response interruption and redirection (RIRD). We determined effect size estimates for published and unpublished studies using 3 metrics, percentage of nonoverlapping data (PND), Hedges' g, and log response ratios (LRR). Omnibus effect size estimates across all 3 metrics were positive, supporting that RIRD is an effective treatment for reducing problem behavior maintained by nonsocial consequences. We observed larger PND for published compared to unpublished studies, small and nonsignificant differences in LRR for published compared to unpublished studies, and significant differences in Hedges' g for published compared to unpublished studies, with published studies showing slightly larger effect. We found little, if any, difference in methodological quality between published and unpublished studies. While RIRD appears to be an effective intervention for challenging behavior maintained by nonsocial consequences, our results reflect some degree of publication bias present in the RIRD research literature.     

Common Brain Structural Alterations Associated with Cardiovascular Disease Risk Factors and Alzheimer’s Dementia: Future Directions and Implications

Neuropsychology Review - Recent reports suggest declines in the age-specific risk of Alzheimer’s dementia in higher income Western countries. At the same time, investigators believe that...