Stephen Houghton

Executive Function and ADHD: A Comparison of Children's Performance during Neuropsychological Testing and Real-World Activities.

Objective: Current understanding of executive function deficits in Attention-Deficit/Hyperactivity Disorder (ADHD) is derived almost exclusively from neuropsychological testing conducted in laboratory settings. This study compared children’s performance on both neuropsychological and real-life measures of executive function and processing speed. Method: The Stroop and Wisconsin Card Sorting Task (WCST) were selected as neuropsychological measures, whereas route tasks in a videogame and at the zoo were used to index real-life measures. Participants comprised a community sample of 22 unmedicated boys with ADHD individually matched on age and IQ with 22 normally developing control boys. Results: There were no group differences in executive function on the Stroop or zoo tasks, but the ADHD group exhibited deficits in set-shifting as assessed by the WCST (perseverative errors and responses) and videogame play (fewer challenges completed). Also, the ADHD group showed slowed processing speed on the Stroop (slower color naming) and zoo activity (longer time to complete task), as well as a slower rate of acquisition of the sorting rule on the WCST (more trials to complete first category). Efficient and flexible videogame play (number of challenges completed) was related positively to efficacy on the Stroop (number of items named correctly in the interference and two control conditions) and inversely related to set-shifting problems on the WCST (perseverative responses and errors). Also, problems in goal-directed behavior at the zoo (number of deviations from designated route) were related to problems in set-shifting on the WCST (perseverative responding). Conclusions: Children with ADHD exhibit impairments in executive function and processing speed in real-world activities as well as in neuropsychological testing. Cognitive deficits detected by standardized neuropsychological testing are related to performance difficulties in real-world activities.

Self-Efficacy and Academic Achievement in Australian High School Students: The Mediating Effects of Academic Aspirations and Delinquency.

Studies have shown that self-efficacy, aspirational, and other psychosocial influences account for considerable variance in academic achievement through a range of mediational pathways, although no research to date has tested the mediational relationships identified. The present research investigated the structural relations among self-efficacy, academic aspirations, and delinquency, on the academic achievement of 935 students aged 11-18 years from ten schools in two Australian cities. The Childrens Self-Efficacy Scale, Adapted Self-Report Delinquency Scale (Revised), and Childrens Academic Aspirations Scale were administered to participants prior to academic achievement being assessed using mid-year school grades. Structural equation modeling was employed to test three alternative models for the relationships from academic, social, and self-regulatory efficacy on academic achievement. A partial mediation model showed the best overall fit to the data. Academic and self-regulatory efficacy had an indirect negative effect through delinquency and a direct positive effect on academic achievement. Academic and social self-efficacy had positive and negative relationships, respectively, with academic aspiration and academic achievement; however, the relationship between academic aspiration and academic achievement was not significant in the final model.

Television, computer use, physical activity, diet and fatness in Australian adolescents

PURPOSE To examine sedentary behaviours (including television viewing, playing computer games and computer use), diet, exercise and fitness in relation to overweight/obesity in Australian adolescents. METHODS Questionnaires elicited food frequency data, time spent in TV-viewing, using computers, other sedentary occupations and physical activity recall. Weight, height and fitness (laps completed in the Leger test) were measured. RESULTS Among 281 boys and 321 girls, mean age 12 years (SD 0.9), 56 boys (20.0%) and 70 girls (23.3%) were overweight/obese. Greater fitness was associated with decreased risk of overweight/obesity in boys (Odds ratio [OR] 0.74; 95% CI 0.55, 0.99) and girls (OR 0.93; 95% CI 0.91, 0.99). TV-viewing predicted increased risk in boys (OR 1.04; 95% CI 1.01, 1.06) and decreased risk in girls (OR 0.99; 95% CI 0.96, 0.99). Computer use, video games, and other sedentary behaviours were not significantly related to risk of overweight/obesity. Vegetable intake was associated with lower risk in boys (OR 0.98; 95% CI 0.97, 0.99); greater risk was associated with lower fat intake in boys and girls, lower consumption of energy-dense snacks in boys (OR 0.74; 95% CI 0.62, 0.88) and greater intake of vegetables in girls (OR 1.02; 95% CI 1.00, 1.03), suggesting dieting or knowledge of favourable dietary choices in overweight/obese children. CONCLUSIONS Among these adolescents, fitness was negatively related to risk for overweight/obesity in boys and girls. TV-viewing was a positive predictor in boys and a negative predictor in girls but the effect size was small; other sedentary behaviours did not predict risk.

The Effects of Contingent Teacher Praise, as Specified by Canter's Assertive Discipline Programme, on Children's On‐task Behaviour

Summary The purpose of this study was to examine the effectiveness of contingent teacher praise, as specified by Canters Assertive Discipline programme, on childrens on‐task behaviour. In Western Australian primary schools (and in an increasing number of British schools) Canters programme is widely used. However, while there are many anecdotal reports of its effectiveness there is a relative absence of well controlled research studies reporting objective data. In the present study, three teachers from three separate primary schools and eight randomly selected children from each of their classes were systematically observed. Continuous data collection indicated that following training in the appropriate use of praise, as specified by Canter, all three teachers successfully increased their rates of praising. Of the 24 children, all but one evidenced increases in levels of on‐task behaviour. However, observations conducted during a follow‐up phase revealed reductions in the use of praise by the teachers a...

Goal Setting among Adolescents: A Comparison of Delinquent, At-Risk and Not-at-Risk Youth.

A series of studies was conducted to compare group differences in the goal orientations of delinquent, at-risk, and not-at-risk adolescents. An Importance of Goals Scale was developed by examining the item responses of 230 high school students and validated by administering the revised scale to 80 delinquent, 90 at-risk, and 90 not-at-risk adolescents. Results identified differences in the importance attributed to different goals by the 3 groups. Delinquent and at-risk adolescents attached significantly more importance to goals associated with developing a social image (e.g., delinquency, freedom-autonomy), whereas not-at-risk adolescents were more concerned with goals associated with an academic image (e.g., educational, interpersonal). Results are discussed in terms of their implications for school achievement, peer relations, and future life paths.

Physical activity and nutrition programs for couples: a randomized controlled trial.

Diet and physical activity habits may deteriorate after cohabitation, leading to weight gain and increased risk of lifestyle diseases. We carried out a 4-month, randomized controlled trial of a diet and physical activity program for couples with a 1-year follow-up, comparing two methods of delivery. The program used six modules, which, after an initial group session, were mailed to the low-level intervention group. In the high-level intervention group, half of the modules were mailed, and the others were delivered at interactive group sessions. A control group received no intervention. Postintervention and at follow-up, physical fitness improved in the high-level group, saturated fat intake decreased in both intervention groups, and low-density lipoprotein cholesterol fell in the high-level group. Fewer participants in the high-level group became overweight or obese. Health promotion for couples can improve health behaviors and potentially lower the risk of lifestyle diseases in participants and their future families.

An adaptation of Mak's self-reported delinquency scale for Western Australian adolescents

Abstract A series of studies was conducted to adapt the Australian Self-reported Delinquency Scale (Mak, 1993) for use with adolescents in the State of Western Australia. First, an item construction and analysis study was conducted to determine whether variations in State laws and rules between the Australian Capital Territory (where Maks scale was developed) and Western Australia would require the deletion or addition of items to the present scale. As a result of this study, two items were deleted and six items were added to the scale. Second, the factor structure and content validity of the scale were tested by examining the item responses of 230 high-school students to determine whether the same nine factors obtained by Mak would be yielded. The outcomes of this analysis identified seven factors, which were labelled theft and burglary, motor vehicle offences, drug-related offences, assault, vandalism, public disorder, and school-related offences. Finally, the scale was validated by comparing the item ...

Rates of cyber victimization and bullying among male australian primary and high school students

The prevalence and nature of electronic forms of bullying (cyberbullying) was investigated among 1,530 primary and secondary school aged male students (Years 6 to 12; 9-18 years, chronologically) in Sydney and Brisbane, Australia. Findings revealed that victimization via the Internet was the most common form of cyberbullying with 11.5 percent of students reporting at least one experience of it during the school year. A significant main effect was found, with junior secondary school students (Years 8 to 10) the most likely to be victimized in this manner. With regard to the cyberbullying of others, the Internet was again the most commonly employed method, with 8.5 percent of students reporting using it. A main effect was evident between year levels for all four forms of cyberbullying investigated. The transmission of electronic images was the least reported form of cyberbullying experienced (4.8 percent) and the least frequently perpetrated form of cyberbullying (3.7 percent), which is less than the only other study conducted reporting such data. These findings are discussed in the light of the relatively limited cyberbullying research undertaken to date.

To Medicate or Not to Medicate? The Decision-making Process of Western Australian Parents Following Their Child's Diagnosis with an Attention Deficit Hyperactivity Disorder

This article examines the decision‐making processes that Western Australian parents utilise when deciding whether to medicate or not to medicate their child diagnosed with Attention Deficit Hyperactivity Disorder. Thirty‐three parents (five fathers and 28 mothers) from a wide range of socio‐economic status suburbs in Perth, Western Australia were interviewed. A grounded theory of “doing right by my child” emerged from the data. In seeking to be doing right by their child, parents move through the three distinct stages of grieving, cynicism, and proactive parenting. During the grieving process, parents come to terms with their child’s diagnosis. The grieving process comprises seven sub‐stages—those of denying the diagnosis, seeking alternative treatments, venting anger, experiencing emotional turmoil, expressing remorse, feeling depressed, and reaching a guarded acceptance. Although their ease of traverse through each of these first six sub‐stages is largely dependent on the level of support they receive, the majority of parents eventually reach a guarded acceptance of their child’s diagnosis and confront the issue of whether or not to medicate their child. In Stage 2 parents express their cynicism about society’s dichotomous attitude towards ADHD and the use of medication as a treatment option, and in Stage 3 they adopt a proactive approach to their parenting.

Goal-setting and reputation enhancement: Behavioural choices among delinquent, at-risk and not at-risk adolescents

Purpose. The purpose of the present research was to investigate the relationships among goal-setting, reputation enhancement (striving to project a nonconforming, tough image) and delinquent behaviour in adolescents. Methods. Participants were 80 incarcerated delinquent, 90 at-risk and 90 not at-risk adolescent males, ranging in age from 12 to 18 years, who completed four scales: the Adapted Self-Report Delinquency Scale, the Importance of Goals Scale, the Reputation Enhancement Scale, and the Rosenberg Self-Esteem Scale. Results. Four second-order factors (self-reported delinquency, self-presentation, conforming reputation, non-conforming reputation) were derived from the 31 first-order factors of the four scales. A series of multivariate analyses of variance (MANOVAs) and univariate F tests were then performed on each of the four sets of dependent variables which revealed that the goals of delinquent and at-risk participants were more congruent with a non-conforming reputation, compared to those of the not at-risk participants who set goals which were more congruent with a conforming reputation. Conclusions. The integration of goal-setting theory and reputation enhancement theory tested in this research provides an alternative analysis of delinquency using a social-psychological approach. Identification of the phenomenon of nonconforming reputation enhancement among delinquent and at-risk adolescents highlights the necessity to provide a differentiated intervention for working with these particular young people.