Is the DOSPERT gender invariant? A psychometric test of measurement invariance

It is well established in the risk literature that men tend to take more risks than women. This gender difference, however, is often qualified by its domain specificity. Considering recent research on the domain generality of risk taking as a disposition, there is a need to examine the degree to which men take more risks than women, in general. In order to make substantive conclusions about the gender differences in risk‐taking propensity, one must first establish measurement invariance, which is required for the meaningful interpretation of observed group differences. In this paper, we examined the measurement invariance of the Domain‐Specific Risk‐Taking scale (DOSPERT)—one of the most popular measures of individual differences in risk taking. We found that the DOSPERT violated configural invariance in a bifactor model, indicating that the underlying factor structure of the DOSPERT differs between men and women. Even after removing the social risk dimension, DOSPERT still failed to reach scalar invariance. Taken together, these findings suggest that score differences in the DOSPERT may be due to response artifacts rather than true differences in the latent construct. Therefore, gender differences in the DOSPERT must be interpreted with caution. Implications for the measurement of risk taking are discussed.     

A naturalistic pilot study assessing the impact of assessment pathways and intake methods within Improving Access to Psychological Therapies services

Fast access pathways characterise many Improving Access to Psychological Therapy (IAPT) services, allowing them to see increasing numbers of referrals year on year. At the same time, emerging research is highlighting potential care inefficiencies, including early treatment disengagement, inappropriate treatment allocation, less than optimal clinical outcomes, and repeat referrals. Integrating more stratified models based on in‐depth and comprehensive assessment techniques which include some therapeutic input could help better target interventions. This could lead to improved engagement and clinical outcomes, while also providing enough therapeutic support to those attending one session only. This pilot study assesses the impact of assessment pathways and intake methods involving a 90‐min face‐to‐face therapeutic consultation, compared with a 45‐min over‐the‐phone assessment session across two IAPT providers in the south of England, and three assessment pathways involving elements of either method and service. Using an observational analysis of routinely collected data across 12 months, intake scores, attendance data and clinical measures of reliable recovery and improvement were considered. The comparisons of intake method reported no significant differences when both services were included; however, there were significant differences in treatment effect sizes and session attendance on an assessment pathway basis. Where assessment sessions were delivered, there was a higher rate of disengagement between sessions one and two, indicating increased attrition. Based on the initial findings and supporting literature, there appears to great promise in exploring pathway modelling and intake processes within IAPT services.     

The effects of reinforcer magnitude in the preceding and upcoming ratios on between‐ratio pausing in multiple,mixed, and single fixed‐ratio schedules

Hens responded under multiple fixed‐ratio schedules with equal response requirements and either a 1‐s or a 6‐s reinforcer. Upcoming reinforcer size was indicated by key color. Components were presented in a quasirandom series so that all four component transitions occurred. Postreinforcement pauses were affected by the upcoming and preceding reinforcer size, with longer pauses after large reinforcers followed by small reinforcers than when followed by large ones, and longer pauses after small reinforcers that were followed by small reinforcers rather than large ones. Pauses increased with fixed‐ratio size and the effects of reinforcer size were larger the larger the ratio. When reinforcer size was not signaled—mixed fixed‐ratio schedules—pauses were shorter after small than after large reinforcers. Signalling the upcoming reinforcer attenuated the effect of the previous reinforcer size on pause duration when small was followed by small and when either small or large by large, but enhanced the effect when large was followed by small. There was no effect of reinforcer size on pause duration when single fixed‐ratio schedules were arranged. The effects of reinforcer size on pauses depends on the size and range of the fixed ratios as well as the exact procedures used in the study.     

The gestural repertoire of the wild bonobo (<Emphasis Type="Italic">Pan paniscus</Emphasis>): a mutually understood communication system

In animal communication, signallers and recipients are typically different: each signal is given by one subset of individuals (members of the same age, sex, or social rank) and directed towards another. However, there is scope for signaller–recipient interchangeability in systems where most signals are potentially relevant to all age–sex groups, such as great ape gestural communication. In this study of wild bonobos (Pan paniscus), we aimed to discover whether their gestural communication is indeed a mutually understood communicative repertoire, in which all individuals can act as both signallers and recipients. While past studies have only examined the expressed repertoire, the set of gesture types that a signaller deploys, we also examined the understood repertoire, the set of gestures to which a recipient reacts in a way that satisfies the signaller. We found that most of the gestural repertoire was both expressed and understood by all age and sex groups, with few exceptions, suggesting that during their lifetimes all individuals may use and understand all gesture types. Indeed, as the number of overall gesture instances increased, so did the proportion of individuals estimated to both express and understand a gesture type. We compared the community repertoire of bonobos to that of chimpanzees, finding an 88 % overlap. Observed differences are consistent with sampling effects generated by the species’ different social systems, and it is thus possible that the repertoire of gesture types available to Pan is determined biologically.     

A 40‐Year Review of Multicultural Counseling Outcome Research: Outlining a Future Research Agenda for the Multicultural Counseling Movement

This study represents a 40‐year review of multicultural counseling outcome research that has been done in the mental health professions. Particular attention is directed to the outcomes that ensue from counseling situations that are composed of counselors and clients from different racial/cultural backgrounds and identities in individual, group, and family counseling settings. Recommendations are presented for the next decade of multicultural counseling outcome research.     

The effects of explicit “Not Present” and “Don't Know” response options on identification decisions in computer-administered lineups

Eyewitness researchers recommend that “not present” and “don't know” response options should be presented with police lineups. Although it is important that witnesses—most of whom are unlikely to be familiar with the identification task—are fully cognizant of all response options available to them, an understanding of how explicit non-identification options affect performance is lacking. Across four experiments, including 3,633 participants and 8 different stimulus sets, we tested the effects of including non-identification options in computer-administered lineups. When explicit non-identification options were presented, target-present and -absent choosing decreased. This decrease in choosing was characterized by a shift from filler identifications to lineup rejections. ROC analyses revealed that there was no overall difference in discriminability between guilty and innocent suspects depending on response option condition. On balance, the findings suggest that, in addition to informing witnesses about acceptable responses, displaying non-identification response options does not undermine identification performance.