A note on the relationship between graphs and information protocols

Information protocols (IP’s) were developed to describe players who learn their social situation by their experiences. Although IP’s look similar to colored multi-graphs (MG’s), the two objects are constructed in fundamentally different ways. IP’s are constructed using the global concept of history, whereas graphs are constructed using the local concept of edges. We give necessary and sufficient conditions for each theory to be captured by the other. We find that the necessary and sufficient condition for IP theory to be captured by MG theory, which we call SE, excludes relevant game situations. Hence, we conclude that IP theory remains a vital tool and cannot be replaced by MG theory.     

Executive Functioning and Delay Discounting of Four Different Outcomes in University Students

The study investigated a potential relationship between level of executive functioning and rates of delay discounting (i.e., the subjective decrease in the value of an outcome if its delivery is delayed). University students completed an executive-functioning questionnaire and then a delay-discounting task involving four different outcomes (money, cigarettes, dating partner, body image). Results showed that the overall measure of executive functioning was a significant predictor of rates of discounting of three of the four outcomes, and approached significance for the fourth outcome. Further, different subscales of executive functioning were significantly correlated with discounting of different outcomes. These results suggest that executive functioning plays a role in discounting of delayed outcomes and that procedures designed to affect either executive function or delay discounting might result in concomitant changes in the other measure.     

A Picture-Based Activity Schedule Intervention to Teach Adults with Mild Intellectual Disability to Use an iPad During a Leisure Activity

Individuals with developmental disabilities have limited opportunities to participate in leisure activities, frequently due to lack of skills. The purpose of the current study was to teach three adults diagnosed with mild intellectual disability to use an iPad in the context of playing the video game Angry Birds. We used an adapted multiple baseline across participants research design to teach the task, which included opening the cover of the iPad, unlocking the device, opening Angry Birds, playing the game, and putting the iPad away. Instruction took place during breaks in a private room at a sheltered workshop. During intervention, participants had access to an activity schedule to aid in completion of the task. In some cases, extra prompts were provided to increase attention to the activity schedule. All three participants showed improvement in the target skill with intervention and gains were sustained during the maintenance phase.     

Specific and differential prediction of health anxiety by disgust sensitivity and propensity

Current models of health anxiety suggest that fear resulting from false alarms to perceived threats to one's health results in the development of hypochondriasis and related disorders. Disgust has been proposed as an affective response that may function as an etiological and maintenance mechanism in health anxiety. Moreover, the way in which an individual perceives the disgust response (disgust sensitivity) may affect health anxiety, separately from their likelihood of experiencing disgust (disgust propensity). The present study utilized multiple hierarchical regression analysis to investigate the degree to which self-reported disgust sensitivity and disgust propensity differentially predict elevated health anxiety in a sample of 620 non-treatment-seeking undergraduates. Further, this effect is tested in comparison to that of anxiety sensitivity, a construct demonstrated to be strongly related to health anxiety. Analyses indicate that disgust sensitivity, rather than disgust propensity, is primarily responsible for this relation. An additional analysis tested the specificity of disgust sensitivity relative to anxiety sensitivity. Disgust sensitivity was no longer significant after including anxiety sensitivity in the model. Suggestions for further evaluation of this relation are provided. These results suggest that although disgust sensitivity may appear related to health anxiety, this relation may be confounded by anxiety sensitivity.     

The “Hidden” Technology of Effective Parent Consultation: A Guided Participation Model for Promoting Change in Families

Parenting interventions based on social learning principles are amongst the most effective interventions available to prevent and manage social, emotional and behavioral problems in children and adolescents. The most successful programs employ active skills training methods (modeling, rehearsal, practice, feedback and homework) to teach new parenting skills. However, effective parent consultation also involves a broader range of interpersonal and process skills such as building a collaborative relationship, facilitating parent receptivity to new ideas or skills, managing within session resistance, and important micro skills associated with clinical tasks such as promoting parents self-regulation, independent problem solving and autonomy. This paper aims to articulate the “hidden” technology of effective parent consultation and identify implications for research on mechanisms of change in parenting interventions and practitioner training.     

Optional stopping: No problem for Bayesians

Optional stopping refers to the practice of peeking at data and then, based on the results, deciding whether or not to continue an experiment. In the context of ordinary significance-testing analysis, optional stopping is discouraged, because it necessarily leads to increased type I error rates over nominal values. This article addresses whether optional stopping is problematic for Bayesian inference with Bayes factors. Statisticians who developed Bayesian methods thought not, but this wisdom has been challenged by recent simulation results of Yu, Sprenger, Thomas, and Dougherty (2013) and Sanborn and Hills (2013). In this article, I show through simulation that the interpretation of Bayesian quantities does not depend on the stopping rule. Researchers using Bayesian methods may employ optional stopping in their own research and may provide Bayesian analysis of secondary data regardless of the employed stopping rule. I emphasize here the proper interpretation of Bayesian quantities as measures of subjective belief on theoretical positions, the difference between frequentist and Bayesian interpretations, and the difficulty of using frequentist intuition to conceptualize the Bayesian approach.     

AN EVALUATION OF SELF‐MONITORING TO IMPROVE SWIMMING PERFORMANCE

This study evaluated the effects of self‐monitoring by swimmers to improve their performance and assessed the effects of reactivity to observer presence on their performance. Seven public high school swim team members self‐monitored their behavior on dry erase boards to increase the number of assigned laps completed at practice. Reactivity to observer presence was assessed as a confederate, recorded the number of laps completed during observer absent conditions. The percentage of assigned laps completed increased during the self‐monitoring phases. The self‐monitoring and feedback phase further increased the percentage of assigned laps completed and increased the participants' mean level of reporting accuracy. The effects from the reactivity assessment were mixed across participants. Further research is needed to examine reactivity effects in sport settings. Copyright © 2014 John Wiley & Sons, Ltd.     

Does Symptom Linkage Density Predict Outcomes in Cognitive Therapy for Recurrent Depression?

Journal of Psychopathology and Behavioral Assessment - Acute-phase cognitive therapy (CT) is an efficacious treatment for major depressive disorder (MDD), but how CT helps patients is incompletely...     

Testing Models of Associations Between Depression and Parenting Self-efficacy in Mothers: A Meta-analytic Review

Numerous cross-sectional studies confirm the long-theorized association between mothers’ depression and lower parenting self-efficacy (PSE) beliefs. However, cross-sectional studies leave unanswered the direction of this association: Does depression predict PSE? Does PSE predict depression? Are both true? Does the strength of the association between depression and PSE, regardless of the direction, generalize across participant characteristics and study design features? How stable is PSE over time? And how effective are interventions at enhancing PSE? To answer these questions, we conducted a meta-analytic review of longitudinal studies. With 35 eligible studies (22,698 participants), we found support for both models: there was a significant pooled effect of both depression on PSE and of PSE on depression, with nearly identical effect sizes (d?=?????0.21 and ??0.22, respectively). The association was stronger in samples with mothers’ younger average age and studies that measured PSE among mothers relative to during pregnancy. We found a medium degree of stability in the index of PSE, d?=?0.60. Finally, the estimated pooled effect size between being in an intervention group versus control group and PSE was 0.505. Overall, we found support for (1) bidirectional associations between depression and PSE in mothers, (2) the stability of PSE over time, and (3) the strength of the relationship between PSE and depression with intervention. These results suggest the importance of continuing to develop, test, and disseminate interventions to enhance PSE. We interpret these findings in the context of both depression and low PSE having serious consequences for child outcomes and maladaptive parenting.