Longitudinal stability of pre‐reading skill profiles of kindergarten children: implications for early screening and theories of reading

Research suggests that early identification of developmental dyslexia is important for mitigating the negative effects of dyslexia, including reduced educational attainment and increased socioemotional difficulties. The strongest pre‐literacy predictors of dyslexia are rapid automatized naming (RAN), phonological awareness (PA), letter knowledge, and verbal short‐term memory. The relationship among these constructs has been debated, and several theories have emerged to explain the unique role of each in reading ability/disability. Furthermore, the stability of identification of risk based on these measures varies widely across studies, due in part to the different cut‐offs employed to designate risk. We applied a latent profile analysis technique with a diverse sample of 1215 kindergarten and pre‐kindergarten students from 20 schools, to investigate whether PA, RAN, letter knowledge, and verbal short‐term memory measures differentiated between homogenous profiles of performance on these measures. Six profiles of performance emerged from the data: average performers, below average performers, high performers, PA risk, RAN risk, and double‐deficit risk (both PA and RAN). A latent class regression model was employed to investigate the longitudinal stability of these groups in a representative subset of children (n = 95) nearly two years later, at the end of 1st grade. Profile membership in the spring semester of pre‐kindergarten or fall semester of kindergarten was significantly predictive of later reading performance, with the specific patterns of performance on the different constructs remaining stable across the years. There was a higher frequency of PA and RAN deficits in children from lower socioeconomic status (SES) backgrounds. There was no evidence for the IQ–achievement discrepancy criterion traditionally used to diagnose dyslexia. Our results support the feasibility of early identification of dyslexia risk and point to the heterogeneity of risk profiles. These findings carry important implications for improving outcomes for children with dyslexia, based on more targeted interventions.     

Well‐being and the accessibility of pleasant and unpleasant concepts

The trait–congruency hypothesis predicts that persons high in positive or negative trait affect more readily process pleasant or unpleasant stimuli, respectively. In two studies, participants were administered measures of personality and affect. Moreover, a yes/no lexical decision task with pleasant, unpleasant and neutral words was administered in Study 1, whereas a go/no‐go task was used in Study 2. Several methods to increase reliabilities of differences in reaction times are explored. Correlations of measures of personality and trait affect with decision times were mostly consistent with the trait–congruency hypothesis, particularly for decision times in the go/no‐go task that measured individual differences in valence‐specific decision times more reliably. The findings suggest that trait‐related concept accessibility is one source of trait congruity. Copyright © 2006 John Wiley & Sons, Ltd.     

Processing of temporal and nontemporal information as predictors of psychometric intelligence: a structural-equation-modeling approach

Recent research suggests a functional link between temporal acuity and general intelligence. To better understand this relation, the present study took advantage of a large sample (N=260) and structural equation modelling to examine relations among temporal acuity, measured by various tasks, speed of information processing as measured by the Hick reaction time task, and psychometric intelligence. Temporal acuity and the Hick task showed common variance in predicting psychometric intelligence. Furthermore, timing performance was a better predictor of psychometric intelligence and mediated the relation between Hick task performance and psychometric intelligence. These findings are consistent with the idea that temporal acuity reflects a basic property of neural functioning that is relevant to intelligence-related aspects of mental activity including speed of information processing.     

Zahnhartsubstanzschäden bei Essstörungen

Eating disorders such as anorexia nervosa and bulimia nervosa lead to several serious physical problems. One possible consequence is acid-related dental erosion. Dental erosion can be identified early and is caused by exogenic (selection of food) and / or endogenic (gastric acid) factors. That is why dentists play an important role in the early identification of eating disorders as well as in the prevention and therapy of dental erosion. They should be important collaborators of psychotherapists. We review characteristic damages to the teeth that are seen in eating disorders as well as preventive and therapeutic interventions. Psychotherapists should be informed about dental problems and preventive strategies to educate their patients.     

Women’s Perspectives Related to Occupational Performance Following Participation in Substance Use Recovery Programs

Very little research has examined how substance abuse programs affect occupational performance. The progression of addiction and its etiology for women are still under-reported. This study aimed to explore perceived effects of substance use and participation in peer-based programs on women’s occupational performance. Qualitative semi-structured interviews were completed with seven women. Four themes were identified: (1) substance use did not markedly inhibit participation in daily life; (2) recovery was supported by replacing substance related occupations with non-substance related occupations; (3) perceived value of shared perspectives and experiences with others; and (4) the embracing of new perspectives as part of recovery.     

To share or not to share? Explaining willingness to share in the context of social distance

Sharing can help make goods available to many people who would otherwise have no access to them. In the effort of motivating more people to participate in the sharing economy, it is useful to know the variables that influence the willingness to share (WTS). Our study aims to identify these variables. Applying field theory, we conducted an experiment based on nonmonetary sharing situations. Complementing existing research directed towards users of goods, we focused on the providers of goods, thus broadening the understanding of sharing contexts. We demonstrate that WTS can be explained by several variables. In particular, a low social distance increases individuals' WTS their belongings with others. Product involvement is also a predictor of whether or not people are willing to share. In contrast, consumer characteristics such as materialism, altruism, and interpersonal trust have no impact on sharing intentions. Our findings provide significant implications for consumer research and for the marketing of sharing organizations.     

Value-based decision-making battery: A Bayesian adaptive approach to assess impulsive and risky behavior

Using simple mathematical models of choice behavior, we present a Bayesian adaptive algorithm to assess measures of impulsive and risky decision making. Practically, these measures are characterized by discounting rates and are used to classify individuals or population groups, to distinguish unhealthy behavior, and to predict developmental courses. However, a constant demand for improved tools to assess these constructs remains unanswered. The algorithm is based on trial-by-trial observations. At each step, a choice is made between immediate (certain) and delayed (risky) options. Then the current parameter estimates are updated by the likelihood of observing the choice, and the next offers are provided from the indifference point, so that they will acquire the most informative data based on the current parameter estimates. The procedure continues for a certain number of trials in order to reach a stable estimation. The algorithm is discussed in detail for the delay discounting case, and results from decision making under risk for gains, losses, and mixed prospects are also provided. Simulated experiments using prescribed parameter values were performed to justify the algorithm in terms of the reproducibility of its parameters for individual assessments, and to test the reliability of the estimation procedure in a group-level analysis. The algorithm was implemented as an experimental battery to measure temporal and probability discounting rates together with loss aversion, and was tested on a healthy participant sample.     

The (non-)benefit of choosing: If you get what you want it is not important that you chose it

Self-Determination Theory argues that autonomy plays a major role in intrinsic motivation. Autonomy can be operationalized as choice. Whether positive effects on motivation are caused by the mere act of choosing or by confounding variables is still unclear. In this study (N?=?299, M_age?=?13.1?±?0.6 years), students could work with two polarizing animals. The first group was allowed to choose (choosing & match), two groups were not. In these groups, the teacher allocated the animals to the students resulting in a second group that received the wanted animal (no choosing & match), and a third group that received the unwanted animal (no choosing & no match). Situational motivation and flow experience were assessed. Regarding intrinsic motivation and flow, students in the no choosing & match treatment scored the highest, students of the no choosing & no match group the lowest. In conclusion, matching and not choosing made the difference.