Clarifying the construct of perfectionism

The construct of perfectionism is related to many important outcome variables. However, the term perfectionism has been defined in many different ways, and items comprising the different existing scales appear to be very different in content. The overarching aim of the present set of studies was to help clarify the specific unidimensional personality constructs that contribute to perfectionistic behavior. First, trained raters reliably sorted items from existing measures of perfectionism into nine dimensions. An exploratory factor analysis, followed by a confirmatory factor analysis on an independent sample, resulted in a 9-scale, 61-item measure, called the Measure of Constructs Underlying Perfectionism. The nine scales were internally consistent and stable across time, and they were differentially associated with relevant measures of personality in theoretically meaningful ways.     

Comparison of Parent Versus Child-Report of Child Impulsivity Traits and Prediction of Outcome Variables

Five personality traits that dispose individuals to rash or ill-advised action (i.e., sensation seeking, negative urgency, positive urgency, lack of planning, and lack of perseverance), can be reliably and validly assessed in children. This paper reports on the first test of parental reports of these traits. In a sample of 94 children (ages 7–13, mean age 10.6), the authors found the following. First, parental reports of the five traits in their children appeared to be reliable. Second, there was moderate convergent validity: parent and child reports of the same traits had a median correlation of r?=?.30. Third, there was adequate discriminant validity: within-parent reports on different traits had a median correlation of r?=?.11. Fourth, concurrent prediction of child behavior from parental reports generally was inconsistent with prior findings. Fifth, discrepancies between the two reporters did predict dysfunctional child behavior. There are advantages to securing both child self-report and parental report of personality dispositions to rash action, although there is limited evidence for the concurrent validity of parental reports.     

A longitudinal transactional risk model for early eating disorder onset

The presence of binge eating behavior in early middle school predicts future diagnoses and health difficulties. We showed that this early binge eating behavior can be predicted by risk factors assessed in elementary school. We tested the acquired preparedness model of risk, which involves transactions among personality, psychosocial learning, and binge eating. In a sample of 1,906 children assessed in the spring of fifth grade (the last year of elementary school), the fall of sixth grade, and the spring of sixth grade, we found that fifth grade negative urgency (the personality tendency to act rashly when distressed) predicted subsequent increases in the expectancy that eating helps alleviate negative affect, which in turn predicted subsequent increases in binge eating behavior. This transactional risk process appeared to continue to occur at later time points. Negative urgency in the fall of sixth grade was predicted by fifth grade pubertal onset, binge eating behavior, and expectancies. In turn, it predicted increases in high-risk eating expectancies by the spring of sixth grade, and thus heightened risk.