The relationship between health (malnutrition) and educational achievements (Maths and English) in the rural children of South Africa

The purpose of this paper is to report the cross-sectional relationship between educational achievements and the ‘health status’ of the rural South African children in the Ellisras Longitudinal Study (ELS).The study followed a cohort design where 1033 children (569 boys and 464 girls) aged 7–14 were randomly sampled from 11 primary schools and one secondary school. Anthropometric measurements for height for age (HAZ), weight for age (WAZ), body mass index (BMI) and sum of skinfolds (SOS) were carried out to establish their ‘health status’. Educational achievement tests for Mathematics and English were administered to check their educational status.The results of the multilevel analysis showed that HAZ, WAZ and BMI were positively related to both English and Mathematics performance. HAZ was only positively related to mathematical performance and SOS was not related to educational achievement at all. Furthermore, age and gender only marginally influenced the observed relationships.The study recommends that other factors such as socio-economic status and learning environment should be looked into to find out whether these factors influence the observed relationships.     

MEMORY TRAINING IN THE COMMUNITY: EVALUATIONS BY PARTICIPANTS AND EFFECTS ON METAMEMORY

This study examined 129 participants in seven types of memory training programs in Belgium. It was found that more than half of the subjects participated because they felt their memory was deteriorating or because they were afraid of memory deterioration. After completion of the program, subjects rated the training as being somewhat too short, as useful for their daily lives, as very pleasant, and as being of adequate difficulty. Almost all subjects indicated they would like to take part in a follow‐up training program. Forty‐one percent of the subjects indicated increased memory awareness as the main effect; other effects often cited included the discovery that subjects were not the only ones with complaints, increased knowledge of memory functioning, and the possibility for self‐development. However, no pre‐to‐posttraining effect could be found on scales of the Memory Functioning Questionnaire, except for a small (but significant) increase in self‐reported frequency of forgetting.     

Young and Older Adults' Reading of Distracters

We used eye-tracking technology to examine young and older adults' performance in the reading with distraction paradigm. One-, 2- and 4-word distracters that formed meaningful phrases were used. There were marked age differences in fixation patterns. Young adults' fixations to the distracters and targets increased with distracter length, suggesting that they were attempting to integrate the distracters with the sentence and had more and more difficulty doing so as the distracters increased in length. Young adults did have better comprehension of the sentences than older adults and also better recognition memory for target words and distracters.     

Young and Older Adults' Reading of Distracters

Eye-tracking technology was employed to examine young and older adults' performance in the reading with distraction paradigm. Distracters of 1, 2, and 4 words that formed meaningful phrases were used. There were marked age differences in fixation patterns. Young adults' fixations to the distracters and targets increased with distracter length. This suggests that they were attempting to integrate the distracters with the sentence and had more and more difficulty doing so as the distracters increased in length. Young adults did have better comprehension of the sentences than older adults, and they also had better recognition memory for target words and distracters.     

Impacting Mediators of Change for Physical Activity Among Elderly Food Stamp Recipients

A multidisciplinary team developed and pilot-tested a curriculum, delivered by trained lay educators, to increase self-efficacy for physical activity among elderly food stamp recipients. Curriculum development was guided by a comprehensive literature review. Process evaluation was used to revise the curriculum and to assess lay educator training and pilot test fidelity. Three hundred sixteen low-income older adults participated in curriculum development and pilot-testing activities. One hundred twenty four participants completed pretest/posttest impact evaluation surveys. The average age of participants was 75 years old with 55.28% having less than high school education. Significant increases in self-efficacy regarding walking most days (p = .0022), using exercise bands (p < .0001), being physically active to increase strength (p = .0012), being active without injury (p < .0001), being able to wear appropriate clothing and shoes (p < .0001), and getting information about community physical activity programs (p = .0007) were observed. Participants also endorsed higher ratings of general health at posttest (p < .0001).     

Focus on Audio in Communication and Instruction: an Overview

Abstract

Because ‘audio’ appears to be a neglected topic of study in the AV discipline, an extensive survey of the literature has been conducted. Results have been reported in a number of publications by the author, which are referenced here. Summarizing them, biological, physical, and psychological aspects of sound are described, and the controversial issue of preferred modality of perception is discussed. Parallels and differences between images and sounds are stressed. Discriminations are made between sound categories of speech, music, and effects, and silence is introduced as another sound category. It is argued that there are objects that produce sound and objects that are essentially acoustic. Auditory technology is summarized in mechanic, magnetic, optical and digital systems. For the designer of sound media, a number of guidelines are given in particular concerning the relationships between sound and image and several relevant communicational functions of sound.