Philip Mohr

Obesity-related behaviors in adolescent friendship networks

This study examines obesity-related behaviors within adolescent friendship networks, because adolescent peers have been identified as being important determinants of many health behaviors. We applied ERGM selection models for single network observations to determine if close adolescent friends engage in similar behaviors and to explore associations between behavior and popularity. Same-sex friends were found to be similar on measures of organized physical activity in two out of three school-based friendship networks. Female friends were found to engage in similar screen-based behaviors, and male friends tended to be similar in their consumption of high-calorie foods. Popularity (receiving ties) was also associated with some behaviors, although these effects were gender specific and differed across networks.

Incidence and correlates of posttrauma symptoms in children from backgrounds of domestic violence.

In recent years, evidence has emerged of the presence of posttrauma symptoms in children from backgrounds of domestic violence. The present study examined the incidence and correlates of posttrauma symptoms in 56 children of mothers who had been residents in women’s shelters in Adelaide, South Australia. The most frequently endorsed symptoms among this sample of children were being troubled by distressing thoughts, conscious avoidance, hypervigilance, and sleep difficulties. Twenty percent of children met the criteria for a diagnosis of posttraumatic stress disorder (PTSD). Children meeting full PTSD criteria scored significantly higher on measures of anxiety, depression, and dissociation. Results support the use of a posttrauma framework for understanding the effects on children of living with domestic violence.

The role of item extremity in the emergence of keying-related factors : An exploration with the life orientation test

Keying-related factors in psychological scales are variously interpreted substantively or as products of violations of the assumptions underlying item keying. The present study investigated whether the extremity of the wording of items may contribute to the emergence of item-keying factors in a commonly used psychological scale. Respondents (N = 277) completed the Life Orientation Test (M. F. Scheier & C. S. Carver, 1985) in either its original or modified, more moderately worded form. Results indicate that the interaction of item extremity and item keying significantly affected subscale means and, more important, that the more moderately worded scale was substantially more unidimensional. Results are explained partially through the association of lesser and greater extremity with the tendency for some respondents to agree or disagree with items irrespective of keying direction. These results, although demonstrated in only 1 scale, have potential relevance to any scale comprising positive and negative items.

Personal and lifestyle characteristics predictive of the consumption of fast foods in Australia.

OBJECTIVE To identify key predictors of fast-food consumption from a range of demographic, attitudinal, personality and lifestyle variables. METHODS We analysed data from a nationwide survey (n = 20 527) conducted in Australia by Nielsen Media Research. Items assessing frequency of fast-food consumption at (1) eat in and (2) take away were regressed onto 12 demographic, seven media consumption, and 23 psychological and lifestyle variables, the latter derived from factor analysis of responses to 107 attitudinal and behavioural items. RESULTS Stepwise multiple regression analyses explained 29.6% of the variance for frequency of take-away and 9.6% of the variance for frequency of eat-in consumption of fast foods. Predictors of more frequent consumption of fast food at take away (and, to a lesser extent, eat in) included lower age - especially under 45 years, relative indifference to health consequences of behaviour, greater household income, more exposure to advertising, greater receptiveness to advertising, lesser allocation of time for eating, and greater allocation of time to home entertainment. There were no effects for occupational status or education level. CONCLUSIONS The effects for age suggest that fast-food take-away consumption is associated with a general cultural shift in eating practices; individual differences in attitudinal and lifestyle characteristics constitute additional, cumulative, predictive factors. The role of advertising and the reasons for the lesser explanatory value of the eat-in models are important targets for further research.

Incidence and Correlates of Posttraumatic Stress Disorder in Australian Victims of Domestic Violence

In recent years, evidence has emerged of the significant incidence of posttraumatic stress disorder (PTSD) among victims of domestic violence. The present study examined incidence and correlates of PTSD in 100 female victims of domestic violence resident in womens shelters in Adelaide, South Australia. Forty-five women were found to meet all diagnostic criteria for PTSD. Women meeting PTSD diagnostic criteria reported having experienced higher levels of violence and were more likely to report having a spouse with an alcohol problem and having believed they would be killed by their spouse than women who did not meet criteria. Diagnosis of PTSD was also associated with higher levels of anxiety and depression.

Parent- and child-reported parenting. Associations with child weight-related outcomes

The present study aimed to investigate associations of both parent-reported and child-perceived parenting styles and parent-reported parenting practices with child weight and weight-related behaviours. Participants were 175 children (56% female) aged between 7 and 11, and their primary caregivers (91% female), recruited through South Australian primary schools. Children completed measures of parenting style, attitude toward fruit, vegetables, and non-core food, and attraction to physical activity. Parents completed measures of parenting style and domain-specific parenting practices (feeding and activity-related practices) and reported on child dietary intake, physical activity, and sedentary behaviour. Objective height and weight measurements were taken from children, from which body mass index (BMI) was calculated. Child-reported parenting style and parent-reported parenting practices were uniquely associated with child weight-related outcomes, but styles and practices did not interact in their association with child outcomes. Child-reported parenting style was associated with child food and activity attitudes, whereas parent-reported parenting style was not associated with child outcomes. The findings of the present study generally support the recommendation of a parenting style high in demandingness and responsiveness for supporting healthy child weight-related behaviours, along with appropriate domain-specific practices. The childs perspective should be incorporated into research involving child outcomes wherever possible.

Beliefs about fast food in Australia : A qualitative analysis

The consumption of energy-dense fast foods has been implicated as a causal factor in the development of obesity. The development of strategies to modify food choice behaviour requires an understanding of the behaviour and the driving factors. This study examined the rationale behind decisions to either choose or avoid fast foods. Drawing partly on the Theory of Planned Behaviour (Ajzen, (1988)), a qualitative design was employed to examine the beliefs and perceptions associated with fast-food consumption within an Australian sample. Findings provided an indication that positive affective reactions to fast food, convenience, and self-serving cognitions may override cognitive analyses of the longer-term health risks associated with frequent fast-food consumption.

Journalist and Source Gender in Australian Television News

Content analysis of 450 news stories broadcast by five Australian television networks over a period of one week indicated that men were generally over-represented as presenters, reporters, and expert sources. Female reporters predominated only in low-frequency, lower-ranked subjects. Although expert sources were mostly male, male and female reporters did not differ in their use of male or female sources. Despite increased participation of women in journalism, findings indicate a lasting association of men with higher status stories, source authority, sport, and hard news.

A comparison of cognitive restructuring and cognitive defusion as strategies for resisting a craved food

The present study investigated the effectiveness of two cognitive strategies for resisting a craved food. One-hundred-and-ten self-identified chocolate cravers were randomised to a waiting list control condition or to receive a 60-minute standardised group intervention on cognitive restructuring (CR) or cognitive defusion (CD). All participants were provided with a bag of chocolates which they were instructed to carry with them for seven days and try to resist eating; uneaten chocolates were returned at the end of the study period. Measures included chocolate consumption and other behavioural, cognitive and evaluative self-reported outcomes. Overall, the odds of abstinence from chocolate were 3.26 times higher for participants in the CD than the CR condition. The effect of the interventions depended on baseline cognitive distress levels; for individuals at high levels of cognitive distress the CD condition led to significantly more restraint from chocolate than both the CR and control conditions. In addition, CD led to greater self-reported improvements in eating behaviours during the study period and was rated significantly easier to use and apply than CR. CD is discussed as a simple and efficient approach to manage food cravings and, potentially, other behavioural contributors to obesity.

Law-and-Order Politics, Public-Opinion Polls and the Media

Over the past two decades, considerable political rhetoric has focused on the need to get tough on crime. Justification for this hard-line approach has been the publics apparent concern about rising crime rates and its increasing dissatisfaction with criminal sentencing. In this paper, we consider characteristics both of the measurement of public opinion and of the influences upon public opinion that may contribute to the depiction of a fearful, punitive community. In particular, we identify sources of bias in the methods and contexts of opinion-polling that promote a distorted representation of the discrepancy between community expectations of sentencing and the practices of the judiciary. We argue that the practices of pollsters, politicians, and media combine to create a self-sustaining obstacle to considered community discussion of crime and criminal sentencing.