Challenging socioeconomic status: A cross-cultural comparison of early executive function.

The widely and internationally replicated socioeconomic status (SES) gradient of executive function (EF) implies that intervention approaches may do well to extrapolate conditions and practices from contexts that generate better child outcomes (in this case, higher SES circumstances) and translate these to contexts with comparatively poorer outcomes (often low-SES populations). Yet, can the reverse also be true? Using data from equivalent assessments of 1,092 pre-schoolers' EFs in South Africa and Australia, we evaluated: the SES gradient of EF within each sample; and whether this SES gradient extended cross-culturally. The oft-found EF-SES gradients were replicated in both samples. However, contrary to the inferences of EF-SES associations found nationally, the most highly disadvantaged South African subsample outperformed middle- and high-SES Australian pre-schoolers on two of three EFs. This suggests the possibility of EF-protective and -promotive practices within low- and middle-income countries that may aid understandings of the nature and promotion of EFs.

A within-subject experiment of item format effects on early primary students' language, reading, and numeracy assessment results.

Standardized testing is ubiquitous in educational assessment, but questions have been raised about the extent to which these test scores accurately reflect students' genuine knowledge and skills. To more rigorously investigate this issue, the current study employed a within-subject experimental design to examine item format effects on primary school students' standardized assessment results in literacy, reading comprehension, and numeracy. Eighty-nine Grade 3 students (ages 8-9 years) completed tests that varied only in item format: multiple choice; open-ended; error detection and correction; explain; and, for numeracy questions, low literacy. Analyses contrasted students' performance across these conditions, as well as item response theory-derived item difficulty and ability discrimination estimates. Findings revealed that difficulty increased and accuracy decreased from multiple-choice to open-response to error-correction and explain questions. However, the most difficult item formats tended to yield the greatest discrimination across student ability levels. Despite previous findings to the contrary, low-literacy numeracy questions did not improve student performance or reduce item difficulty. Overall, findings indicated the impact of differing methods of assessment on standardized test performance and highlighted the need for careful consideration of not only the content of assessments but also their approaches to assessment. (PsycINFO Database Record (c) 2020 APA, all rights reserved).

Associations of physical activity and gross motor skills with executive function in preschool children from low-income South African settings.

Executive function is foundational for cognitive development. Previous research has shown both gross motor skills and physical activity to be related to executive function. However, evidence for these relationships in the preschool years, as well as in low- and middle-income countries is lacking. Therefore, this study aimed to investigate the relationships between components of executive function (inhibition, shifting and working memory) and gross motor skills (locomotor skills and object control skills) in a sample of preschool children from urban and rural low-income settings in South Africa. Results revealed that inhibition and working memory, but not shifting, were associated with gross motor skills. More specifically: inhibition was associated with both locomotor [ß = 0.20, p = 0.047] and object control skills [ß = 0.24, p = 0.024], whereas working memory was only associated with locomotor skills [ß = 0.21, p = 0.039]. Physical activity was not associated with inhibition and shifting but was negatively associated with working memory. These results elaborate a growing evidence base linking executive function and gross motor skills in the early years, and it is the first to look at specific associations of locomotor and object control skills with executive function in the South African context (a low- and middle-income country).

The method of educational assessment affects children's neural processing and performance: behavioural and fMRI Evidence.

Standardised educational assessments are now widespread, yet their development has given comparatively more consideration to what to assess than how to optimally assess students' competencies. Existing evidence from behavioural studies with children and neuroscience studies with adults suggest that the method of assessment may affect neural processing and performance, but current evidence remains limited. To investigate the impact of assessment methods on neural processing and performance in young children, we used functional magnetic resonance imaging to identify and quantify the neural correlates during performance across a range of current approaches to standardised spelling assessment. Results indicated that children's test performance declined as the cognitive load of assessment method increased. Activation of neural nodes associated with working memory further suggests that this performance decline may be a consequence of a higher cognitive load, rather than the complexity of the content. These findings provide insights into principles of assessment (re)design, to ensure assessment results are an accurate reflection of students' true levels of competency.

Increasing physical activity among young children from disadvantaged communities: study protocol of a group randomised controlled effectiveness trial.

BACKGROUND: Participation in regular physical activity (PA) during the early years helps children achieve healthy body weight and can substantially improve motor development, bone health, psychosocial health and cognitive development. Despite common assumptions that young children are naturally active, evidence shows that they are insufficiently active for health and developmental benefits. Exploring strategies to increase physical activity in young children is a public health and research priority. METHODS: Jump Start is a multi-component, multi-setting PA and gross motor skill intervention for young children aged 3-5 years in disadvantaged areas of New South Wales, Australia. The intervention will be evaluated using a two-arm, parallel group, randomised cluster trial. The Jump Start protocol was based on Social Cognitive Theory and includes five components: a structured gross motor skill lesson (Jump In); unstructured outdoor PA and gross motor skill time (Jump Out); energy breaks (Jump Up); activities connecting movement to learning experiences (Jump Through); and a home-based family component to promote PA and gross motor skill (Jump Home). Early childhood education and care centres will be demographically matched and randomised to Jump Start (intervention) or usual practice (comparison) group. The intervention group receive Jump Start professional development, program resources, monthly newsletters and ongoing intervention support. Outcomes include change in total PA (accelerometers) within centre hours, gross motor skill development (Test of Gross Motor Development-2), weight status (body mass index), bone strength (Sunlight MiniOmni Ultrasound Bone Sonometer), self-regulation (Heads-Toes-Knees-Shoulders, executive function tasks, and proxy-report Temperament and Approaches to learning scales), and educator and parent self-efficacy. Extensive quantitative and qualitative process evaluation and a cost-effectiveness evaluation will be conducted. DISCUSSION: The Jump Start intervention is a unique program to address low levels of PA and gross motor skill proficiency, and support healthy lifestyle behaviours among young children in disadvantaged communities. If shown to be efficacious, the Jump Start approach can be expected to have implications for early childhood education and care policies and practices, and ultimately a positive effect on the health and development across the life course. TRIAL REGISTRATION: Australian and New Zealand Clinical Trials Registry No: ACTRN12614000597695 , first received: June 5, 2014.

The (Possibly Negative) Effects of Physical Activity on Executive Functions: Implications of the Changing Metabolic Costs of Brain Development.

BACKGROUND: An area of growth in physical activity research has involved investigating effects of physical activity on children's executive functions. Many of these efforts seek to increase the energy expenditure of young children as a healthy and low-cost way to affect physical, health, and cognitive outcomes. METHODS: We review theory and research from neuroscience and evolutionary biology, which suggest that interventions seeking to increase the energy expenditure of young children must also consider the energetic trade-offs that occur to accommodate changing metabolic costs of brain development. RESULTS: According to Life History Theory, and supported by recent evidence, the high relative energy-cost of early brain development requires that other energy-demanding functions of development (ie, physical growth, activity) be curtailed. This is important for interventions seeking to dramatically increase the energy expenditure of young children who have little excess energy available, with potentially negative cognitive consequences. Less energy-demanding physical activities, in contrast, may yield psychosocial and cognitive benefits while not overburdening an underweight child's already scarce energy supply. CONCLUSIONS: While further research is required to establish the extent to which increases in energy-demanding physical activities may compromise or displace energy available for brain development, we argue that action cannot await these findings.

Australian alcohol policy 2001-2013 and implications for public health.

BACKGROUND: Despite a complex and multi-faceted alcohol policy environment in Australia, there are few comprehensive reviews of national and state alcohol policies that assess their effectiveness and research support. In mapping the Australian alcohol policy domain and evaluating policy interventions in each of the core policy areas, this article provides a useful resource for researchers. The implications for protecting public health emanating from this mapping and evaluation of alcohol policy are also discussed. METHODS: This review considered data from: published primary research; alcohol legislation, strategies and alcohol-related press releases for all levels and jurisdictions of Australian government; international publications by prominent non-governmental organisations; and relevant grey literature. These were organised and evaluated using the established framework offered by Thomas Babor and colleagues. RESULTS: Findings indicated great variability in alcohol initiatives across Australia, many of which do not reflect what is currently considered to be evidence-based best practice. CONCLUSIONS: Research showing increasing alcohol-related harms despite steady levels of consumption suggests a need to pursue alcohol policy initiatives that are supported by evidence of harm-reduction. Future initiatives should aim to increase existing alcohol controls in line with suggested best practice in order to protect public health in Australia.