Lifespan aging and belief reasoning: Influences of executive function and social cue decoding

Older adults often perform poorly on Theory of Mind (ToM) tests that require understanding of others’ beliefs and intentions. The course and specificity of age changes in belief reasoning across the adult lifespan is unclear, as is the cause of the age effects. Cognitive and neuropsychological models predict that two types of processing might influence age differences in belief reasoning: executive functioning and social cue detection. In the current study we assessed 129 adults aged between 18 and 86 on novel measures of ToM (video clips and verbal vignettes), which manipulated whether true or false belief reasoning was required. On both video and verbal tasks, older adults (aged 65–88) had specific impairments in false belief reasoning, but showed no such problem in performing true belief tasks. Middle-aged adults (aged 40–64) generally performed as well as the younger adults (aged 18–39). Difficulties in updating information in working memory (but not inhibitory problems) partially mediated the age differences in false belief reasoning. Also, the ability to decode biological motion, indexing social cue detection, partially mediated age-related variance in the ability to interpret false beliefs. These results indicate that age differences in decoding social cues and updating information in memory may be important influences on the specific problems encountered when reasoning about false beliefs in old age.     

Grafting Orchids and Ugly: Theatre, Disability and Arts-Based Health Research

Theatre-based health policy research is an emerging field, and this article investigates the work of one of its leaders. In 2005, prominent medical geneticist and playwright Jeff Nisker and his collaborators produced Orchids, his play concerning pre-implantation genetic diagnosis, to research theatre as a tool for engaging citizens in health policy development. Juxtaposing Orchids with a concurrent disability theatre production in Vancouver entitled Ugly, I argue that disability theatre suggests important means for building inclusiveness in this kind of research and complicates Nisker’s own call for international guidelines to delimit how journalists, playwrights, filmmakers, physicians and other media authors share genetics-based narratives in public.     

Body mass index,peer victimization,and body dissatisfaction across 7 years of childhood and adolescence: Evidence of moderated and mediated pathways

Numerous studies have reported that children and adolescents who are overweight are more likely to get bullied, yet the literature is replete with methodological limitations. We examined the transactional associations between peer victimization and body mass index (BMI), considering potential mediating (body dissatisfaction) and moderating (biological sex) factors. Participants (n = 631) came from the McMaster Teen Study, where students were assessed annually between Grades 5–11, approximately half were girls (53.9%), and the majority were white (76.4%). Peer victimization (from Grade 5) and body dissatisfaction (from Grade 6) were self‐reported by students, while parents reported their child's height and weight (from Grade 5). Cascade models were built up sequentially using path analysis across 2‐year increments (Grades 5, 7, 9, and 11). The final model had excellent fit to the data (χ² = 73.961, df = 66, p = 0.234). Grade 5 peer victimization had a direct effect on BMI across a 2‐year period in girls (b = 0.59, SE = 0.21, p = 0.005) and boys (b = 0.82, SE = 0.30, p = 0.006), and an indirect effect on BMI via body dissatisfaction across a 4‐year period (b = 0.074, 95% CI = 0.012–0.152, p = 0.036). At no point did BMI directly increase risk for peer victimization, yet there were indirect effects via body dissatisfaction among girls but not boys. Peer victimization and body dissatisfaction were proximally and longitudinally related at every time point and there was a transactional association in late‐adolescence among girls but not boys. Targeting modifiable factors in the social (peer victimization) and psychological (body dissatisfaction) domains may limit accelerated weight gain and the health risks associated with excess adiposity.     

Secondary student motivation orientations and standards‐based achievement outcomes

Background Individual student characteristics such as competence motivation, achievement values, and goal orientations have been related in meaningful ways to task attainment. The standards‐based National Certificate of Educational Achievement (NCEA) was developed in New Zealand with the intention of strengthening connections between student learning behaviours and achievement outcomes. Aim This study investigates interrelationships between self‐reported motivation orientations and achievement outcomes on the NCEA, a standards‐based, criterion‐referenced assessment system for senior secondary students. Sample Participants were 3,569 Year 11–Year 13 students at 20 nationally representative secondary schools in New Zealand. Method Survey data were factor analysed followed by regression analyses to examine relationships across demographic factors, self‐report survey results, and NCEA achievement outcomes. Results Several theoretically meaningful self‐reported motivation orientations were strongly related to actual achievement including doing my best (high achievement) and doing just enough (low achievement). These dimensions varied by gender, ethnicity, and school zone decile. Conclusions These findings illustrate how particular design features of a standards‐based assessment system relate to student attitudes and achievement. They also highlight the need for longitudinal research to investigate patterns over time as well as the possible impact of interventions to alter motivation and/or academic task performance.     

Baby Triple P: A Randomized Controlled Trial Testing the Efficacy in First-Time Parent Couples

Journal of Child and Family Studies - In a randomized controlled trial, we tested the efficacy of Baby Triple P in a community sample of first-time parent couples. The intervention was developed to...     

Adolescent Sense of Control: A Downward Extension of the Shapiro Control Inventory to Pre- and Early Adolescents

The most commonly used measures of perceived control for young adolescents are dated, psychometrically flawed, or focused on particular domains. To address the need for a general purpose measure of control for this age range, the overall sense of control (OSOC) and the domains of control (DOC) subscales of the Shapiro Control Inventory (D. H. Shapiro, 1994), designed for use with adults, were modified. Exploratory factor analyses suggested that the adapted OSOC and DOC scales consisted of internally consistent 1-factor structures, accounting for 32% and 29% of the variance, respectively. In Study 1, results from 310 preadolescents (9–13 years old) indicated that a higher sense of control was related to lower stress, OSOC, r(308) = ?.52, p < .001; DOC, r(308) = ?.23, p < .001; and depression, OSOC, r(308) = ?.63, p < .001; DOC, r(308) = ?.33, p < .001. In study 2, results from 195 adolescents (11–15 years old) showed that a higher sense of control was associated with lower stress, r(193) = ?.55, p < .001, and depression, r(193) = ?.60, p < .001, concurrently. The results suggest that these 2 revised measures of adolescent perceived control exhibited good content and predictive validities.     

New dimensions of abnormal illness behaviour derived from the Illness Behaviour Questionnaire

The primary aim was to explore the factor structure of the Illness Behaviour Questionnaire (IBQ) and the generalisability of the derived dimensions to both general community members and four chronic illness groups. A questionnaire was administered to 675 participants, comprising 344 from the community, 80 with asthma, 95 with diabetes, 79 with chronic pain and 77 with chronic fatigue syndrome (CFS). Illness severity was calculated for all chronic illness participants (self-rated health for community members). Three IBQ scales were derived following an exploratory factor analysis for the whole sample: Affirmation of Illness (α = 0.71 (CFS)–0.79 (asthma, diabetes)), Concern for Health (α = 0.71 (asthma)–0.78 (pain)) and General Affective State (α = 0.70 (CFS)–0.80 (asthma)). Patterns of response across the five samples, and intercorrelations among the new scales and the original seven scales, were largely in accord with expectation. Long-standing criticisms of the IBQ were addressed by using systematic statistical principles to identify meaningful and psychometrically sound IBQ dimensions. The derived structure offers a more parsimonious account of possible illness responses, with the availability of a more concise yet informative index of abnormal illness behaviour having practical utility for researchers and clinicians alike.     

The role of sight of the hand in the development of prehension in childhood

In two studies, children between 5 and 10 years of age were asked to reach to grasp an object without sight of the hand during the movement. The oldest children and adults were faster when they could see the hand and increased maximum grip aperture when they could not see the hand. The 10-year-olds were less able to integrate grasp and lift than adults when they could see their hands. Children aged 5 and 6 showed no increase in movement time when they could not see the hand and did not adapt maximum grip aperture to lack of sight. These effects remained when children were encouraged to reach for and lift the target as quickly as possible. The results indicate that younger children did not give preference to vision in the control of prehension, while older children used visual feedback to improve efficiency. Dependence on sight of the hand for the control of prehension does not simply decrease with age, but it may be integrated into an anticipatory control strategy where it contributes to the efficiency of control.