The role of diverse instruction in conceptual change

This study examined how a fundamental principle of induction and scientific reasoning, information diversity, could be used to promote change in children's mental models of the earth's shape. Six-year-old children (N=132) were randomly allocated to a control or to one of two training conditions. Some training groups received instruction that simultaneously challenged children's beliefs concerning (a) why the earth appears flat to a surface observer and (b) the role of gravity. Others received instruction that repeatedly challenged only one of these beliefs. An adaptation of the Vosniadou and Brewer (1992, Cognitive Psychology 24, 535-585) protocol for identifying mental models of the earth was administered before and after instruction. Both instruction methods produced increases in factual knowledge. Only children receiving instruction about two core beliefs, however, showed an increased rate of acceptance of a spherical earth model at posttest. The findings show that instruction that challenges diverse aspects of children's na?ve scientific beliefs is more likely to produce conceptual change.     

Behavioral dynamics of steering,obstacle avoidance,and route selection

The authors investigated the dynamics of steering and obstacle avoidance, with the aim of predicting routes through complex scenes. Participants walked in a virtual environment toward a goal (Experiment 1) and around an obstacle (Experiment 2) whose initial angle and distance varied. Goals and obstacles behave as attractors and repellers of heading, respectively, whose strengths depend on distance. The observed behavior was modeled as a dynamical system in which angular acceleration is a function of goal and obstacle angle and distance. By linearly combining terms for goals and obstacles, one could predict whether participants adopt a route to the left or right of an obstacle to reach a go (Experiment 3). Route selection may emerge from on-line steering dynamics, making explicit path planning unnecessary.     

The Anxiety Sensitivity Index - Revised: psychometric properties and factor structure in two nonclinical samples

Anxiety sensitivity (AS) is the fear of anxiety-related sensations based on beliefs about their harmful consequences. Despite its status as the most popular measure of AS, the anxiety sensitivity index is too abbreviated to adequately measure the somatic, cognitive, and social facets of the construct. The Anxiety Sensitivity Index - Revised (ASI-R) is a revised and expanded version of the ASI that was developed to improve the assessment of AS and its dimensions. The present study was conducted to examine the psychometric properties and factor structure of the ASI-R. Two large undergraduate samples completed a psychometric assessment package that included the ASI-R and measures of anxiety, depression, and related constructs. Exploratory factor analysis revealed four lower-order ASI-R factors: (1) beliefs about the harmful consequences of somatic sensations; (2) fear of publicly observable anxiety reactions; (3) fear of cognitive dyscontrol; and (4) fear of somatic sensations without explicit consequences. These factors loaded on a single, higher-order factor. Correlations between the ASI-R factors and related variables were consistent with AS theory. Results across both samples in the present study were highly similar. The strengths and limitations of the ASI-R are discussed, and the implications of our findings for the nature and measurement of AS are considered.     

Knowledge, expectations, and inductive reasoning within conceptual hierarchies

Previous research (e.g. Cognition 64 (1997) 73) suggests that the privileged level for inductive inference in a folk biological conceptual hierarchy does not correspond to the “basic” level (i.e. the level at which concepts are both informative and distinct). To further explore inductive inference within conceptual hierarchies, we examine relations between knowledge of concepts at different hierarchical levels, expectations about conceptual coherence, and inductive inference. In Experiments 1 and 2, 5- and 8-year-olds and adults listed features of living kind (Experiments 1 and 2) and artifact (Experiment 2) concepts at different hierarchical levels (e.g. plant, tree, oak, desert oak), and also rated the strength of generalizations to the same concepts. For living kinds, the level that showed a relative advantage on these two tasks differed; the greatest increase in features listed tended to occur at the life-form level (e.g. tree), whereas the greatest increase in inductive strength tended to occur at the folk-generic level (e.g. oak). Knowledge and induction also showed different developmental trajectories. For artifact concepts, the levels at which the greatest gains in knowledge and induction occurred were more varied, and corresponded more closely across tasks. In Experiment 3, adults reported beliefs about within-category similarity for concepts at different levels of animal, plant and artifact hierarchies, and rated inductive strength as before. For living kind concepts, expectations about category coherence predicted patterns of inductions; knowledge did not. For artifact concepts, both knowledge and expectations predicted patterns of induction. Results suggest that beliefs about conceptual coherence play an important role in guiding inductive inference, that this role may be largely independent of specific knowledge of concepts, and that such beliefs are especially important in reasoning about living kinds.     

How do I love thee? Let me count the Js: implicit egotism and interpersonal attraction

From the perspective of implicit egotism people should gravitate toward others who resemble them because similar others activate people's positive, automatic associations about themselves. Four archival studies and 3 experiments supported this hypothesis. Studies 1-4 showed that people are disproportionately likely to marry others whose first or last names resemble their own. Studies 5-7 provided experimental support for implicit egotism. Participants were more attracted than usual to people (a) whose arbitrary experimental code numbers resembled their own birthday numbers, (b) whose surnames shared letters with their own surnames, and (c) whose jersey number had been paired, subliminally, with their own names. Discussion focuses on implications for implicit egotism, similarity, and interpersonal attraction.     

Parameters of Aggressive Behavior in a Treatment-Seeking Sample of Military Personnel: A Secondary Analysis of Three Randomized Controlled Trials of Evidence-Based PTSD Treatments

Aggressive behavior is prevalent among veterans of post-9/11 conflicts who have posttraumatic stress disorder (PTSD). However, little is known about whether PTSD treatments reduce aggression or the direction of the association between changes in PTSD symptoms and aggression in the context of PTSD treatment. We combined data from three clinical trials of evidence-based PTSD treatment in service members (N = 592) to: (1) examine whether PTSD treatment reduces psychological (e.g., verbal behavior) and physical aggression, and; (2) explore temporal associations between aggressive behavior and PTSD. Both psychological (Estimate = -2.20, SE = 0.07) and physical aggression (Estimate = -0.36, SE = 0.05) were significantly reduced from baseline to posttreatment follow-up. Lagged PTSD symptom reduction was not associated with reduced reports of aggression; however, higher baseline PTSD scores were significantly associated with greater reductions in psychological aggression (exclusively; ß = -0.67, 95% CI = -1.05, -0.30, SE = -3.49). Findings reveal that service members receiving PTSD treatment report substantial collateral changes in psychological aggression over time, particularly for participants with greater PTSD symptom severity. Clinicians should consider cotherapies or alternative ways of targeting physical aggression among service members with PTSD and alternative approaches to reduce psychological aggression among service members with relatively low PTSD symptom severity when considering evidence-based PTSD treatments.     

How Did You Like This Course? The Advantages and Limitations of Reaction Criteria in Ethics Education

Ethics courses are most commonly evaluated using reaction measures. However, little is known about the specific types of reaction data being collected (e.g., content relevance, course satisfaction) and how these reaction data relate to improvements in trainee performance (e.g., knowledge, moral reasoning). Using a sample of 381 ethics training sessions, major reaction data categories were identified. Content and course satisfaction were the most frequently collected types of reaction criteria. Furthermore, content relevance (r = .84) and course satisfaction (r = .79) showed strong, positive relationships with performance criteria, whereas content satisfaction demonstrated a moderate, negative relationship (r = –.28). These results and future directions for ethics training evaluation are discussed.     

Evaluating a novel intervention to reduce trauma symptoms and sexual risk taking: qualitative exit interviews with sexual minority men with childhood sexual abuse

Childhood sexual abuse (CSA) continues to affect sexual minority men (SMM) at disproportionate levels and contributes to multiple negative health outcomes, including sexual-risk taking and HIV acquisition. This paper presents qualitative evaluative feedback from SMM (N = 9) who participated in a 10-session Cognitive Behavioral Therapy-Trauma and Sexual Health (CBT-TSH) intervention to reduce CSA-related posttraumatic stress reaction and distress. The treatment was designed to increase accurate sexual risk appraisals and to improve self-care health behaviors related to HIV/STI acquisition. The researchers identified four emerging themes: (1) motivation to participate, (2) response to cognitive therapy, (3) process of change, and (4) considerations for intervention improvement. These qualitative findings provide useful feedback on the acceptability of an innovative program that integrates CBT for trauma related to CSA with sexual risk-reduction counseling.     

Exploring the Why of Psychologist Misconduct and Malpractice: A Thematic Analysis of Court Decision Documents

Objective: To identify reasons for misconduct and misconduct amongst Australian psychologists. Method: During the 5‐year period from 2008 to 2013, 42 psychologists across 41 cases were found guilty of misconduct and malpractice by civil and administrative courts across Australia. The court decision documents were analysed using Braun and Clarke’s ( 2006 ) qualitative methodology to explore themes relating to the court’s objective, the psychologist’s subjective, and the authors’ interpretive causal reasons transgressing psychologists engaged in misconduct and malpractice. Results: Explanations given by psychologists for misconduct and malpractice behaviours included the use and abuse of legal and illicit substances, addiction behaviours, and impairment due to mental disorder or unresolved trauma. A number of other reasons identified by the courts and by the authors from the evidence cited in the published court decision documents are also discussed. Possible contributing factors for why misconduct and malpractice behaviours occurred coalesced into three themes: the externalisation of responsibility for personal actions and behaviours, a lack of objectivity concerning why such behaviours occurred, and an inability to understand how personal circumstance affected the provision of ethical services to clients. Conclusion: (a) The complexity of situations and scenarios surrounding psychologist malpractice can be simplified for the benefit of designing interventions by applying Glass’ ( 2003 ) concept of the “slippery slope.” (b) Court records have benefit as detailed data, but could be augmented for greater value with a simple and easily completed additional coversheet of background and demographic data.