A non-auditory measure of interference predicts distraction by competing speech in older adults

ABSTRACT

In this study, older adults monitored for pre-assigned target sounds in a target talker's speech in a quiet (no noise) condition and in a condition with competing-talker noise. The question was to which extent the impact of the competing-talker noise on performance could be predicted from individual hearing loss and from a cognitive measure of inhibitory abilities, i.e., a measure of Stroop interference. The results showed that the non-auditory measure of Stroop interference predicted the impact of distraction on performance, over and above the effect of hearing loss. This suggests that individual differences in inhibitory abilities among older adults relate to susceptibility to distracting speech.     

Development as a dynamic system

Development is about creating something more from something less, for example, a walking and talking toddler from a helpless infant. One current theoretical framework views the developmental process as a change within a complex dynamic system. Development is seen as the emergent product of many decentralized and local interactions that occur in real time. We examine how studying the multicausality of real-time processes could be the key to understanding change over developmental time. We specifically consider recent research and theory on perseverative reaching by infants as a case study that demonstrates this approach.     

Understanding Patients' Reactions to Services: The Role of Personal Service Values in Heart Patient Satisfaction and Wellness

This study proposed an individual-difference perspective on heart patients' customer-service satisfaction. We hypothesized that heart patients' satisfaction with service is positively related to wellness and that instrumental care, expressive care, and communication effectiveness are positively related to satisfaction and wellness. We also hypothesized that patients' values for services would moderate the relationship between service provision and outcomes. A survey of 217 heart patients provided support for these hypotheses. Of particular interest were findings that: (a) the service provision-service outcomes relationship was moderated by service values for some patient groups but not for others; and (b) the service provision-outcomes relationship differed across patient subgroups. We discuss the implications for patient satisfaction research and for planning individualized treatment strategies.     

International Organisations in Psychology: The International Council of Psychologists

Cet article décrit le développement de ľassociation "International Council of Psychologists". II donne des détails sur sa contribution à Finternationalisation de la psychologic
This paper looks at the International Council of Psychologists in an international perspective. Its history is briefly traced and its contributions to the "internationalisation of psychology" are discussed. The point is made that today our interest in international organisations -is guided by the extent to which this aim is reached.     

Using Response Times to Model Not-Reached Items due to Time Limits

Missing values at the end of a test typically are the result of test takers running out of time and can as such be understood by studying test takers’ working speed. As testing moves to computer-based assessment, response times become available allowing to simulatenously model speed and ability. Integrating research on response time modeling with research on modeling missing responses, we propose using response times to model missing values due to time limits. We identify similarities between approaches used to account for not-reached items (Rose et al. in ETS Res Rep Ser 2010:i–53, 2010) and the speed-accuracy (SA) model for joint modeling of effective speed and effective ability as proposed by van der Linden (Psychometrika 72(3):287–308, 2007). In a simulation, we show (a) that the SA model can recover parameters in the presence of missing values due to time limits and (b) that the response time model, using item-level timing information rather than a count of not-reached items, results in person parameter estimates that differ from missing data IRT models applied to not-reached items. We propose using the SA model to model the missing data process and to use both, ability and speed, to describe the performance of test takers. We illustrate the application of the model in an empirical analysis.