Effects of a physical education intervention on cognitive function in young children: randomized controlled pilot study.

BACKGROUND: Randomized controlled trials (RCT) are required to test relationships between physical activity and cognition in children, but these must be informed by exploratory studies. This study aimed to inform future RCT by: conducting practical utility and reliability studies to identify appropriate cognitive outcome measures; piloting an RCT of a 10 week physical education (PE) intervention which involved 2 hours per week of aerobically intense PE compared to 2 hours of standard PE (control). METHODS: 64 healthy children (mean age 6.2 yrs SD 0.3; 33 boys) recruited from 6 primary schools. Outcome measures were the Cambridge Neuropsychological Test Battery (CANTAB), the Attention Network Test (ANT), the Cognitive Assessment System (CAS) and the short form of the Connor's Parent Rating Scale (CPRS:S). Physical activity was measured habitually and during PE sessions using the Actigraph accelerometer. RESULTS: Test- retest intraclass correlations from CANTAB Spatial Span (r 0.51) and Spatial Working Memory Errors (0.59) and ANT Reaction Time (0.37) and ANT Accuracy (0.60) were significant, but low. Physical activity was significantly higher during intervention vs. control PE sessions (p < 0.0001). There were no significant differences between intervention and control group changes in CAS scores. Differences between intervention and control groups favoring the intervention were observed for CANTAB Spatial Span, CANTAB Spatial Working Memory Errors, and ANT Accuracy. CONCLUSIONS: The present study has identified practical and age-appropriate cognitive and behavioral outcome measures for future RCT, and identified that schools are willing to increase PE time. TRIAL REGISTRATION NUMBER: ISRCTN70853932 (http://www.controlled-trials.com).

Do tasks make a difference? Accounting for heterogeneity of performance of children with reading difficulties on tasks of executive function: findings from a meta-analysis.

Research studies have implicated executive functions in reading difficulties (RD). But while some studies have found children with RD to be impaired on tasks of executive function other studies report unimpaired performance. A meta-analysis was carried out to determine whether these discrepant findings can be accounted for by differences in the tasks of executive function that are utilized. A total of 48 studies comparing the performance on tasks of executive function of children with RD with their typically developing peers were included in the meta-analysis, yielding 180 effect sizes. An overall effect size of 0.57 (SE .03) was obtained, indicating that children with RD have impairments on tasks of executive function. However, effect sizes varied considerably suggesting that the impairment is not uniform. Moderator analysis revealed that task modality and IQ-achievement discrepancy definitions of RD influenced the magnitude of effect; however, the age and gender of participants and the nature of the RD did not have an influence. While the children's RD were associated with executive function impairments, variation in effect size is a product of the assessment task employed, underlying task demands, and definitional criteria.

Direct versus indirect and individual versus group modes of language therapy for children with primary language impairment: principal outcomes from a randomized controlled trial and economic evaluation.

BACKGROUND: Many school-age children with language impairments are enrolled in mainstream schools and receive indirect language therapy, but there have been, to the authors' knowledge, no previous controlled studies comparing the outcomes and costs of direct and indirect intervention delivered by qualified therapists and therapy assistants, and each delivery mode offered to children individually or in groups. AIMS: To investigate the relative effectiveness of indirect and direct intervention therapy modes delivered individually or in groups for children with primary language impairment. METHODS & PROCEDURES: A multi-centre randomized controlled trial investigated 161 children with primary language impairment aged 6-11 years randomized to a usual-therapy control group or to direct individual, indirect individual, direct group or indirect group therapy modes. Intervention was delivered three times a week for 30-40-min sessions in mainstream schools over 15 weeks. Language performance was assessed at baseline, post-therapy and at 12 months. Cost analysis was based on salary and travel costs for intervention modes and usual therapy. OUTCOMES & RESULTS: Compared with controls, children receiving project therapy made short-term improvements in expressive (p = 0.031), but not receptive, language immediately following intervention. Children with specific expressive language delay were more likely to show improvement than those with mixed receptive-expressive difficulties. The four project therapy modes did not differ on primary language outcomes (all p-values>0.392) and there were no further improvements evident at follow-up. Indirect group therapy was the least costly mode, with direct individual therapy the most costly. CONCLUSIONS & IMPLICATIONS: Intervention in this age group can be effective for expressive language and can be delivered equally effectively though speech and language therapy assistants and to children in groups.

Perceptions and correlates of peer-victimization and bullying.

BACKGROUND: The experiences of peer-victimization and bullying are often treated empirically as though they are conceptually indistinct. Both involve repeated aggression, but definitions of bullying additionally emphasize the importance of aggressor intent and imbalance of power between the aggressor and the victim (Olweus, 1978; Whitney & Smith, 1993). AIMS: The present study aimed to examine the extent to which peer-victimization and bullying are empirically similar. SAMPLE: The sample comprised 1,429 pupils (50.2% male) aged between 8 and 13 years attending mainstream Scottish schools. METHODS: Self-report questionnaire assessing peer-victimization and bullying, coping strategy use (WCCL: Hunter, 2000), situational appraisal and depressive symptomatology (Birleson, 1981). RESULTS: Almost one-third (30.7%) of pupils reported experiencing peer-victimization, and of these 38.1% (11.7% of whole sample) were categorized as victims of bullying. Victims of bullying perceived higher levels of threat and lower levels of perceived control. They also reported using more Wishful Thinking and Social Support coping strategies, but did not differ on Problem Focused coping. Bullied pupils also reported higher levels of depressive symptomatology. CONCLUSIONS: Peer-victimization and bullying appear to be qualitatively different experiences for children and adolescents, with bullying being the more serious phenomenon.

Appraisal and coping strategy use in victims of school bullying.

BACKGROUND: Transactional models of coping (Lazarus & Folkman, 1984) can contribute to our understanding of why some children cope effectively with bullying while others suffer negative outcomes. However, previous research has relied on coping measures that are not comparable with adult measures, restricting investigation of developmental trends. Additionally, previous research has not included appraisals when measuring coping using an established coping measure. AIMS: To examine the factor structure of a coping measure that is directly comparable with the adult literature; to examine the content of pupils' threat and challenge appraisals concerning bullying; and to examine the relationships between appraisals and coping strategy use within the victims of school bullying. SAMPLE: Participants were 459 children aged 9 - 14 years. METHOD: A self-report bullying questionnaire, incorporating Halstead et al.'s (1993) adolescent version of the Ways of Coping Checklist, was completed by participants. Also included were control, threat and challenge appraisal items. RESULTS: Confirmatory factor analysis confirmed that Halstead et al.'s four-factor model of coping is valid for a population of school bullying victims. Content validity of items used to measure threat and challenge appraisal was demonstrated. Ambiguity of challenge appraisal influenced the use of Wishful Thinking, Seeks Social Support and Problem Focused coping. Wishful Thinking was also influenced by control appraisal. Avoidance coping was not influenced by the appraisals measured. CONCLUSION: Halstead et al.'s Revised Ways of Coping Checklist can be used to measure coping amongst child and adolescent victims of bullying. Furthermore, including appraisal variables improves our understanding of individual differences between victims' coping strategy choices.

Help seeking amongst child and adolescent victims of peer-aggression and bullying: the influence of school-stage, gender, victimisation, appraisal, and emotion.

BACKGROUND: An important element of many anti-bullying programmes is encouraging victims to tell someone about their predicament. Research has already reported prevalence of telling, who/when children tell and efficacy of telling. However, seeking help can be viewed as a coping behaviour, and coping processes such as appraisal and emotion may be important predictors of whether pupils ask for help. AIMS: To examine the effects that background variables (gender, school-stage), victimisation (duration, frequency), appraisal (threat, challenge, control) and negative emotion have upon support seeking by child and adolescent victims of peer-aggression and bullying. To also examine how effective pupils perceive social support to be. SAMPLE: Participants were 830 children (49% male) aged 9-14 years. Three hundred and seventeen pupils were in Primary 6, 307 in Secondary 2 and 206 in Secondary 3. METHOD: A self-report bullying questionnaire was completed by the participants within their classes. Questionnaires included items relating to victimisation, appraisal, emotion, and coping strategy choice as well as demographic data. RESULTS: Hierarchical multiple regression analysis revealed that gender, challenge appraisals, and emotions were significant predictors of the degree to which child and adolescent victims of peer-aggression and bullying sought help (accounting for 15.8% of the variance): girls were more likely than boys to seek help, as were pupils with high challenge appraisals or those experiencing high levels of negative emotion. Also, girls were more likely than boys to view support as the best strategy for both stopping bullying and for helping them to feel better. CONCLUSION: Results suggest that pupils are more willing to seek help when they see the situation as one in which something can be achieved. Pupils also may be seeking support to get help coping with negative emotions, and this may need to be emphasized to teachers.