Measuring adult indirect aggression: The development and psychometric assessment of the indirect aggression scales

This paper describes the development of a psychometric measure of indirect aggression for use in an adult population. Items were generated from a series of qualitative interviews. Two versions of the scale were developed; the Indirect Aggression Scale Aggressor version (IAS‐A) and Target version (IAS‐T). Both versions of the scale were administered to separate samples (n_A=294; n_T=294). Scales were analysed using item analysis of internal consistency, as well as exploratory factor analysis. Both versions were found to have the same consistent three sub‐scales: social exclusion, use of malicious humour, and guilt induction. Preliminary psychometric evaluation suggests that the scales are both sufficiently reliable (with Cronbach's alphas ranging from .81 to .89) and valid. There were no gender differences in either using or being the victim of indirect aggression, and the behaviour was significantly negatively correlated with age. Future validation and potential usage of the measures are discussed. Aggress. Behav. 31:1–14, 2005. © 2005 Wiley‐Liss, Inc.     

Examining the Association Between Body Mass Index and Weight Related Quality of Life in Black and White Women

Obesity not only increases risk for morbidity/mortality, but also impacts the quality of life of obese individuals. In the United States, black women have the highest prevalence of obesity of any other group with approximately 80% of black women over age 20 having a body mass index (BMI)????25?kg/m². We aimed to examine the association between BMI and quality of life in this high risk population compared to this association in white women, using the Impact of Weight on Quality of Life (IWQOL)-Lite questionnaire. Data from 172 black women (mean BMI?=?35.7; age?=?40.5) and 171 white women (mean BMI?=?35.5; age?=?40.4) were collected between 2000 and 2010 analyzed in 2010. The mean IWQOL-Lite total score was 81.6 for black women compared to 66.9 for white women, a statistically significant difference. Hierarchical linear regression models revealed a significant BMI-by-race interaction indicating that the relationship between BMI and IWQOL-Lite score was moderated by race. Our findings suggest notable differences in weight-related quality of life in black and white women. At similar BMIs, black women consistently reported better quality of life than white women on all IWQOL-Lite subscales. The greatest difference in IWQOL-Lite scores between black and white women was seen in the self-esteem subscale. Additional research is needed to understand how to incorporate the weight perspectives of black women into weight management messages and interventions.     

Normal body, beautiful body: discrepant perceptions reveal a pervasive 'thin ideal' from childhood to adulthood

We aimed to determine the developmental trajectory for the 'thin ideal' by evaluating discrepancies in objective ratings of female body attractiveness and normality in a sample of children and adults. One hundred and sixty Australian middle class male and female participants from four different age groups (range: 4-26 years) viewed sets of photos depicting female bodies that varied systematically on the dimension of width. Six photo sets were presented. Participants ranked three sets according to their perceptions of body normality and ranked the other three sets in terms of body attractiveness. Results indicated that for all age groups, attractiveness ratings were significantly thinner than normality ratings. These findings indicate that the thin ideal is already present in primary school children and remains stable into adulthood, with concerning implications for body dissatisfaction and related disorders. Further research is required to clarify the developmental origins of preferences for thinner-than-normal female bodies.     

On the theoretical error bound for estimating psychometric functions

The theoretical limits to the amount of error, or the Cramer-Rao bounds, were derived for estimating psychometric functions. These theoretical error bounds were compared with the variability of psychometric functions estimated from human as well as computer-simulated observers. For the simulated observers, due to the limited efficiency of the sampling strategies, including the placement of the signals and the distribution of the trials, the variances of the estimated parameters are seven times the theoretical bound for threshold and 22 times that for slope. For the human observers, the variance is 18 times the theoretical bounds for threshold and 80 times that for slope. Therefore, a major portion of the variances (60% for threshold and 73% for slope) for the human observers is associated with factors other than sampling strategies. Further improvement of the accuracy for estimating psychometric functions will depend on not only optimizing the sampling strategy, but also better understanding the various sources of error related to the behavior of human observers.     

Indicators of Self-rated Driving across 3 Years among a Community-based Sample of Older Adults

These secondary analyses were conducted to identify predictors of self-rated driving ability over three years in community-dwelling older adults. From the Staying Keen in Later Life (SKILL) study, baseline and 3-year follow-up data for 426 older drivers were analyzed. Health, visual, physical, psychological and cognitive abilities were examined as prospective predictors of self-rated driving ability over a 3-year period, controlling for baseline self-rated driving. Results indicated that lower baseline ratings of self-efficacy and a diagnosis of osteoporosis independently predicted lower self-rated driving ability at 3-year follow-up. Interestingly, functional performance, such as visual, physical and cognitive abilities, were not predictive of self-ratings of driving ability across three years. Older drivers' self-ratings are more reflective of perceived self-efficacy rather than functional abilities. Self-screening tools for older drivers may be effective in improving the correspondence between perceived ability and actual ability in order to promote better informed decisions about driving regulation.     

Do Inferences about Age Differences in Emotional Experience Depend on the Parameters Analyzed?

Age differences in emotional experience are assessed through self-report scales or questionnaires referring to a specific period of varying length, and examining different parameters of emotional response. A recent meta-analysis suggests that the type of instrument and parameter used could account for some of the inconsistencies in the results. The present study shows comparisons between emotional experience in samples of younger (N = 120, aged 20–27) and older (N = 103, aged 55–75) participants. An Emotional Self-Monitoring record was administered every day for a week. The results show that emotional expression was highly stable over time. However, they also show that some theoretical assumptions about individual age differences in emotional experience and age depend on the parameters on which the analysis is based (occurrence, frequency and intensity, and emotional balance).     

Ethnic socialization and the academic adjustment of adolescents from Mexican, Chinese, and European backgrounds

Ethnic and generation differences in the frequency and types of ethnic socialization messages that 524 eleventh-grade adolescents from Mexican, Chinese, and European backgrounds received from their parents were examined. Results indicated that adolescents from both Mexican and Chinese backgrounds reported more cultural socialization and preparation for bias messages than their peers from European backgrounds. Chinese adolescents reported more promotion of mistrust messages than their peers with European backgrounds. Moreover, promotion of mistrust messages negatively predicted academic achievement, whereas positive cultural socialization messages accounted for the higher levels of motivation among adolescents from Chinese and Mexican backgrounds as compared with their equally achieving peers from European backgrounds.     

Elucidating the neural correlates of egoistic and moralistic self-enhancement

Self-enhancement is the biasing of one’s view of oneself in a positive direction. The brain correlates of self-enhancement remain unclear though it has been reported that the medial prefrontal cortex (MPFC) may be important for producing self-enhancing responses. Previous studies have not examined whether the neural correlates of self-enhancement depend on the particular domain in which individuals are enhancing themselves. Both moralistic and egoistic words were presented to participants while transcranial magnetic stimulation (TMS) was applied to the MPFC, precuneus or in a sham orientation. Participants were asked to make decisions as to the words describing themselves, some of which were positive and some of which were negative. It was found the MPFC TMS significantly disrupted egoistic self-enhancement when TMS was delivered to the MPFC. Judgments involving moralistic words were not influenced by TMS. These data provide further evidence that MPFC is involved in self-enhancement, and that the role of MPFC may be selective in this regard.     

Dissociations in visual attention deficits among persons with mild cognitive impairment

Impairments in visual attention and visual information processing have been identified as part of the neuropsychological features of Alzheimer's disease (AD), even in its earliest stages. There is increasing recognition that these deficits may be selective rather than global, with some attentional subtypes being more vulnerable than others. The few studies that have investigated attentional deficits in mild cognitive impairment (MCI), a putatively prodromal phase of AD, have not satisfactorily addressed the possible selectivity in attentional deficits in MCI. This study examined potential dissociations in visual attention deficits in MCI using a measure that assesses simple, divided, and selective attention. The results indicated a hierarchy of attentional impairments, with divided attention being the most affected and simple attention the least. Among participants with MCI, 53% showed evidence of impairment in divided attention compared to 19% of controls (OR = 4.81, p < .001). Poorer visual attention was also associated with poorer overall cognitive status. The implications of these findings for early identification of MCI, prevention of functional decline in MCI, and delay/reversal of cognitive degradation in MCI are discussed.