The structure of the perceived sociocultural influences on body image and body change questionnaire

This article is concerned with the development and evaluation of the Perceived Sociocultural Influences on Body Image and Body Change Questionnaire. The scale was designed to assess the perceived nature of feedback received from mother, father, best male friend, and best female friend to gain weight, lose weight, and increase muscle tone. The perceived feedback from the media on each of these areas also was assessed. Exploratory factor analysis was conducted with 240 adolescent boys (mean age = 13.83 years) and 204 adolescent girls (mean age = 13.70 years). A 3-factor structure was found for the 4 scales that related to perceived feedback from mother, father, best male friend, and best female friend. Feedback on muscle tone loaded with both weight loss and weight gain. The three factors related to (a) general feedback; (b) encourage, tease, and modeling to gain weight and increase muscle tone, and (c) encourage, tease, and modeling to lose weight and increase muscle tone. The factor structure and the items that made up these factors were the same for both boys and girls for each of the 4 scales. The Perceived Media Influences Scale formed 3 factors for girls. These factors related to gaining weight, losing weight, and increasing muscle tone. For boys, the same 9 items formed a single factor. The same items were retained for boys and girls. A confirmatory factor analysis with 822 adolescents (382 boys, mean age = 14.02 years; 440 girls, mean age = 13.82 years) confirmed the previously described factor structure. These results demonstrate that the Perceived Sociocultural Influences on Body Image and Body Change Questionnaire is able to assess body image and body change strategies that are relevant for both boys and girls.

Perceived environmental aesthetics and convenience and company are associated with walking for exercise among Australian adults

Background: This study aimed to investigate relationships between environmental aesthetics, convenience, and walking companions and walking for exercise or recreation and to investigate differences in these relationships by sex and by reported physical and mental health.

Methods: Analyses of cross-sectional self-report data from a statewide population survey of 3,392 Australian adults were used.

Results: Men and women reporting a less aesthetically pleasing or less convenient environment were less likely to report walking for exercise or recreation in the past 2 weeks. Those respondents, particularly women, reporting no company or pet to walk with were also less likely to walk for exercise or recreation. Associations with environmental and social influences were observed for men and women reporting both good and poor physical and mental health.

Conclusions: Perceived environmental aesthetics and convenience and walking companions are important correlates of walking for exercise among urban Australians. Acknowledging the cross-sectional nature of these data, findings support a case for evaluation of environmental policies to promote physical activity.

Subjective quality of life, perceived control and dispositional optimism among older people

Objectives: To examine whether the subjective quality of life (QOL) of elderly people is held under homeostatic control, and to investigate the role of perceived control and dispositional optimism in the maintenance of subjective QOL.
Method: 100 older people (M=75.6 years) and a control group of 107 younger people (M=20.1 years) completed a self-report survey.
Results: Both groups had a level of subjective QOL within the normal range. The older group reported higher levels of secondary control and optimism, but similar levels of primary control, as the younger group. Primary control and optimism predicted subjective QOL for both groups. Secondary control was a significant predictor (or the younger group, however it was only marginally significant for the older group. Optimism accounted for the most subjective QOL variance for both groups.
Conclusions: The finding that the subjective QOL of the older group lay within the normative range supports the proposal that their subjective QOL is being successfully maintained under bomeostatic control. However, they appear to have an increased reliance on secondary control. The fact that dispositional optimism captures the predictive variance of perceived control, is an important finding adding to the understanding of subjective QOL maintenance.

On the perceived location of global motion

We measured the effects of coherent motion of one set of dots on the perceived location of Gaussian envelopes formed by luminance modulation of a second set of dots. Perceived shifts in envelope location in the direction of coherent motion were obtained even when the dots forming the envelopes did not physically move in the direction of coherent motion. In such cases, perceived shifts coincided with stimulus configurations that permitted motion integration of the envelope dots with the coherently moving dots, for example, when envelope dots moved in random directions as opposed to being static. In subsequent experiments we explored the type of motion integration underlying the positional shifts obtained. We discounted the possibility that the visual system incorrectly attributes motion signals associated with coherently moving dots to envelope dots by demonstrating that positional shifts could be obtained even when the coherent dots were laterally displaced to either side of the envelope dots such that the regions occupied by the dots did not overlap. We also discounted spatio-temporal summation within the receptive fields of low-spatial-frequency motion-sensitive mechanisms by demonstrating that positional shifts persisted even when the dot displays were high-pass filtered. These results, coupled with the observation that the proportion of coherently moving dots required to produce positional shifts correlated well with global motion thresholds measured for the same dot configurations, suggests that visual processes which underlie motion-dependent positional shifts are based at least in part on cooperative interactions of the type implicated in global motion.

The influence of object-image velocity change on perceived heading in minimal environments

When human observers move forward and rotate their eyes, a complex pattern of light flows across the retina. This pattern is referred to as retinal flow. A model has been proposed to explain how humans perceive their direction of self-movement (or heading) from (1) static depth, (2) direction of image motion, and (3) whether image velocity undergoes acceleration or deceleration (Wang & Cutting, 1999). However, findings from past research in which sparse or minimalist stimuli were used have suggested that not all of the information to which participants are sensitive is captured within the scope of this model. In particular it has been suggested that the magnitude or size of image velocity change may be of significance beyond simply whether image velocity could be categorized as speeding up (i.e., accelerating) or slowing down (i.e., decelerating). In two experiments, the influence of this factor on heading judgments under minimal conditions was investigated. Evidence was found in support of the idea that the rate of image velocity change can influence judgments of the direction of self-movement in minimalist conditions.

Teachers' work hours, work-family conflict and health: the mediating effects of perceived control and organisational support

Teachers are among those working longer hours more than ever before. the implications of these long hours on teachers' health, through work-family conflict, control over hours worked and organisational support were investigated. 120 teachers, of whom 91 (59.3% female) reported
working in excess of 37 1/2 hours in the week prior, participated in the study. Long hours, work-family conflict, control and organisational support, explained 69% of the variance in health. There was no direct effect of long worked hours on health however long hours did have a direct impact on work-family conflict, organisational support, and control and, through
these, teachers' health. Work-family conflict exerted a direct negative impact on health. These findings are discussed in individual and organisational tenns.

Perceived personal, social and environmental barriers to weight maintenance among young women: a community survey

Background: Young women are a group at high risk of weight gain. This study examined a range of perceived personal, social and environmental barriers to physical activity and healthy eating for weight maintenance among young women, and how these varied by socioeconomic status (SES), overweight status and domestic situation. Methods: In October-December 2001, a total of 445 women aged 18–32 years, selected randomly from the Australian electoral roll, completed a mailed self-report survey that included questions on 11 barriers to physical activity and 11 barriers to healthy eating (relating to personal, social and environmental factors). Height, weight and socio-demographic details were also obtained. Statistical analyses were conducted mid-2003. Results: The most common perceived barriers to physical activity and healthy eating encountered by young women were related to motivation, time and cost. Women with children were particularly likely to report a lack of social support as an important barrier to physical activity, and lack of social support and time as important barriers to healthy eating. Perceived barriers did not differ by SES or overweight status. Conclusions: Health promotion strategies aimed at preventing weight gain should take into account the specific perceived barriers to physical activity and healthy eating faced by women in this age group, particularly lack of motivation, lack of time, and cost. Strategies targeting perceived lack of time and lack of social support are particularly required for young women with children.

A comparison of the sources and nature of body image messages perceived by indigenous Fijian and European Australian adolescent girls

Australian and Fijian adolescent girls reported on the influence that sociocultural factors, including parents, peers, and the media, had on their body image attitudes. It was expected that messages that promote a thin body would be less prevalent among Fijians, as their cultural traditions place more importance on robust body sizes. An inductive thematic analysis of the girls’ semi-structured interviews indicated that both Fijian (n = 16) and Australian (n = 16) girls (aged 13–17) reported messages from similar sources, which included parents, siblings, and friends/peers. Australian girls consistently reported messages that reinforced thinness. On the other hand, Fijian girls reported messages that emphasized both thinness and robustness. The discussion focuses on the conflict between Western ideals and cultural Fijian traditions and the implications for culturally sensitive interventions.

Nurses' perceived training needs in child protection issues

Purpose – The purpose of this research is to explore nurses' perceptions of their current skills and knowledge and training needs to identify cases of child abuse and their understanding of their roles and responsibilities in relation to child abuse. Nurses, including health visitors and midwives, have been recognised as having a key role in the protection and care of children, especially in identifying and referring possible cases of child abuse and neglect.

Design/methodology/approach – A structured questionnaire concerning knowledge and training needs in child protection was sent to all nurses employed in a Scottish NHS Primary Care Trust (approximately 1,900), of whom one-third (667) responded. These survey results were complemented by semi-structured interviews with 99 members of the nursing workforce.

Findings – Almost all training in child protection had been confined to health visitors, resulting in the Trust giving an implicit message that child protection is not a role in which other nurses need have any involvement. In general, those nurses who both worked with children and had involvement in child protection issues, considered themselves to be most in need of knowledge around child protection work, to have the greatest level of knowledge and to consider further training a priority.

Research limitations/implications – Nurses who had an interest or involvement in child protection work were more likely to participate in the research, which may have biased the results.

Practical implications – Training strategies need to address the diversity of nurses' involvements in child protection work through the development of training programmes which are appropriate for different workplaces and different occupational groupings. Nurses in some settings will need to be first convinced they have the potential to play an important role in protecting children from abuse and neglect.

Originality/value – Many NHS Trusts have in recent years introduced mandatory training in child protection for all staff in contact with children. However, previously published studies have considered training issues only in respect of nurses identified as working directly with children, whereas this study explores child protection issues for all nurses employed in a primary care NHS Trust.

The influence of weather and solar elevation on perceived colour of Blue Lake, Mount Gambier, South Australia

Previous studies of the remarkable seasonal colour changes of Blue Lake, Mount Gambier, South Australia have speculated on the roles of weather and solar elevation in this phenomenon. In this study the influence of weather and solar elevation on apparent colour is examined. Solar elevation and some weather variables were found to have a statistically significant influence, particularly when Blue Lake is undergoing transition from its blue to grey stage. However, the proportion of the overall variation in colour explained by solar elevation and weather was only 16%, so it is concluded that in-lake properties are probably the main determinants of colour.

The relationship between quality of life and perceived body weight an dieting history in Dutch men and women

OBJECTIVES: (1) To study the relationship between quality of life (QoL) and measured and perceived weight and dieting history in Dutch men and women; (2) to assess the effect of weight loss over a 5 y period on QoL.

DESIGN: A cross-sectional study, in a sub-sample longitudinal over 5 y.

SUBJECTS: A total of 2155 men and 2446 women, aged 20-59 and recruited from the general population from three towns in The Netherlands.

MEASUREMENTS: Body weight, height, self-administered questionnaire including questions concerning demographic variables and weight loss practices as part of the Dutch Monitoring project on Risk Factors for Chronic Disease (MORGEN). The Rand-36 questionnaire was used as the QoL measure.

RESULTS: In men, measured overweight (body mass index, BMI>25 kg=m2) was not associated with any dimension of QoL after adjustment for age, educational level and perceived overweight. Perceived overweight was related to reduced scores for general health and vitality. This relationship was independent of measured obesity. A history of repeated weight loss was associated with reduced scores for role functioning due to both physical and emotional problems. In women, measured overweight was significantly associated with lower scores for five out of eight QoL dimensions and perceived overweight with three: general health, vitality and physical functioning. A history of frequent weight loss was related to significantly reduced scores in six dimensions. However, only with history of frequent weight loss, and uniquely in women, was there a significant reduction in
scores on mental health and limited emotional role functioning. Measured and perceived overweight and frequent weight loss were all related to reduced scores for physical functioning. Longitudinal data indicate that in older women weight gain of 10% body weight or more was associated with a significant deterioration in QoL.

CONCLUSIONS: When looking at measures of QoL in relation to overweight it is important to separate the effects of perception of weight status and history of weight loss. We observed that the latter two factors were associated with reduced scores on several dimensions of QoL, particularly in women. These associations were observed to be independent of body weight. International Journal of Obesity (2001) 25, 1386 – 1392

Real time, perceived time and time online : a review of student experiences of time over thirty years of distance and online education

This paper examines how students use and perceive time when studying in distance education modes and what affects this perception of time and the reality of time. We examine 30 years of student involvement on distance and online education, their comments on both their learning experiences, and the technology requirements of distance education/online learning. Our University has been involved in distance education since its formation in 1974. The online technologies offer increasingly sophisticated and immersive experiences for our students, both on campus and off campus, but many of our students continue to complain of time squeeze, and fail to predict the time it will take them to complete our subjects. We research how the technologies we use for online learning are contributing to this time squeeze perception and the student's "real" time to learn.
Research is drawn from both the Australian Bureau of Statistics and surveys of our students' experiences (we have 32,000 students online, with single online classes of over 1300 students), to examine student use and perceptions of their available time to study and how the technologies used in online learning affect this.