Parent-Youth Rating Concordance for Hair Pulling Variables,Functional Impairment,and Anxiety Scale Scores in Trichotillomania

ABSTRACT

Knowledge of cross-informant rating concordance is critical for the assessment of child and adolescent problems in clinical and research settings. We explored parent-youth rating concordance for hair pulling variables, functional impairment, and anxiety symptoms in a sample of child and adolescent hair pullers (n = 133) satisfying conservative diagnostic criteria for trichotillomania (TTM). Whole group analyses reveal significant parent-youth agreement on all study variables. Split group analyses, however, reveal superior parent-youth concordance for the adolescent (15–17 years old) versus younger (10–12 years old) hair pullers for awareness of hair pulling and anxiety scale scores. These results highlight the need for both parent and youth ratings when assessing younger children with TTM.     

Psychometric Properties of the Primary Care Behavioral Health Screen

The Primary Care Behavioral Health Screen (PCBHS) is a self-report instrument developed to screen for behavioral health problems in primary care settings. The present paper describes development of the PCBHS and reports findings from item analyses and studies examining the instrument’s convergent validity and test–retest reliability. Results suggest the PCBHS is a useful and valid method for screening a variety of behavioral health problems in a busy primary care practice. Recommendations for further research on the PCBHS are provided.     

In defense of nativism

This paper takes a fresh look at the nativism–empiricism debate, presenting and defending a nativist perspective on the mind. Empiricism is often taken to be the default view both in philosophy and in cognitive science. This paper argues, on the contrary, that there should be no presumption in favor of empiricism (or nativism), but that the existing evidence suggests that nativism is the most promising framework for the scientific study of the mind. Our case on behalf of nativism has four parts. (1) We characterize nativism’s core commitments relative to the contemporary debate between empiricists and nativists, (2) we present the positive case for nativism in terms of two central nativist arguments (the poverty of the stimulus argument and the argument from animals), (3) we respond to a number of influential objections to nativist theories, and (4) we explain the nativist approach to the conceptual system.     

The Skin Picking Impact Scale: Factor structure,validity and development of a short version

In the present study, we examined the psychometric properties of the Skin Picking Impact Scale (SPIS; Keuthen, Deckersbach, Wilhelm et al., 2001), a 10 item self‐report questionnaire designed to assess the psychosocial impact of skin picking disorder (SPD). Participants were 650 individuals who met criteria for SPD in an online survey. Exploratory and confirmatory factor analyses demonstrated a unitary factor structure with high internal consistency (α = 0.94). Consequently, we constructed an abbreviated 4‐item version that retained good internal consistency (α = 0.87) and a robust factor structure. Both the short and the full versions demonstrated discriminant and convergent/concurrent validity. In conclusion, the findings indicate that both versions are psychometrically sound measures of SPD related psychosocial impact; however, some potential limitations of the full scale are discussed.     

Venturing Beyond Analytic Philosophy's “Best” Arguments to the Implied Inadequacies of Its Metaphilosophical Intuitions

Gary Gutting argues, in his recent book What Philosophers Know, that analytic philosophy provides a sizable collection of exemplary arguments that effectively yield a “disciplinary body of philosophical knowledge”—“metaphilosophy,” he names it—that is, specimens that define in a notably perspicuous way what we should understand as philosophical knowledge itself. He concedes weaknesses in the best‐known specimens, and he admits that, generally, even the best specimens do not provide answers to the usual grand questions. I admire his treatment of the matter but argue that the metaphilosophical issues are, normally, of a much grander gauge than that of his sort of specimen; that they require a much more open, informal sort of inquiry and exchange than that of the distinctive rigor of the classic specimens themselves; that analytic philosophy, not uncharacteristically, tends to ignore the metaphilosophical issue or takes the validity of its method of argument for granted; and that the issue itself invites an appraisal of competing second‐order conceptions of how philosophical argument proves fruitful. I proceed by way of the examination of cases drawn from Quine and Kripke.     

Psychometric Properties of the Perceived Social Support from Family and Friends Scale: Data from an Adolescent Sample in Ghana

Several studies have found that perceived social support plays a crucial role in the psychological and physical wellbeing of young people. A number of instruments measuring perceived social support have been developed and validated, including the Perceived Social Support from Family and Friends subscales. The psychometric properties of the Perceived Social Support from Family and Friends subscales have been demonstrated in a range of samples, although not in Ghana. The purpose of this study is to investigate the psychometric properties of the Perceived Social Support from Family and Friends subscales in Ghanaian adolescents using data from a school-based survey (N?=?770; 14–21 years). Participants completed a self-report questionnaire containing the Perceived Social Support from Family and Friends subscales, the Adolescent Stress Questionnaire, and the 12-item General Health Questionnaire. An exploratory factor analysis in addition to simultaneous confirmatory factor analyses with structural equation modelling were performed to evaluate the factor structure and factorial validity of the subscales along with Cronbach’s α and intercorrelations. Three factors and two factors were extracted for the Friends and Family subscales respectively. While the unidimensional model of the friends subscale had a better fit with the data than the three-factor model, the two-factor model of the family subscale had a better fit than the unidimensional model, even though the unidimensional models of both subscales produced higher internal consistency coefficients. With respect to construct validity, the family subscale demonstrated some evidence of convergent and discriminant validity, but the friends subscale demonstrated some evidence of only discriminant validity, in terms of the association between social support and common mental illness and perceived stress. It appears that the Perceived Social Support subscales are useful instruments for assessing social support from family and friends and could therefore be used to further our understanding about the role of social support in stressful life events and psychological functioning of Ghanaian adolescents, although further research is required for the friends subscale.     

Peer Influence and Nonsuicidal Self Injury: Longitudinal Results in Community and Clinically-Referred Adolescent Samples

Research suggests that adolescents’ engagement in nonsuicidal self-injurious (NSSI) behaviors may be increasing over time, yet little is known regarding distal longitudinal factors that may promote engagement in these behaviors. Data from two longitudinal studies are presented to examine whether NSSI may be associated with peer influence processes. Study 1 included 377 adolescents from a community-based sample; Study 2 included 140 clinically-referred adolescents recruited from a psychiatric inpatient facility. In Study 1, adolescents’ NSSI was examined at baseline and one year later. Adolescents’ nominated best friend reported their own levels of NSSI. In Study 2, adolescents’ NSSI was examined at baseline as well as 9 and 18-months post-baseline. Adolescents’ perceptions of their friends’ engagement in self-injurious behavior (including suicidality) and depressed mood also were examined at all three time points. Baseline depressive symptoms were measured in both studies; gender and age were examined as moderators of peer influence effects. Results from both studies supported longitudinal peer socialization effects of friends’ self-injurious behavior on adolescents’ own NSSI for girls, but not for boys, even after controlling for depressive symptoms as a predictor. Study 1 suggested socialization effects mostly for younger youth. Results from Study 2 also suggested longitudinal socialization effects, as well as peer selection effects; adolescents’ NSSI was associated with increasing perceptions of their friends’ engagement in depressive/self-injurious thoughts and behavior. Findings contribute to the nascent literature on longitudinal predictors of NSSI and to work on peer influence.     

Health Anxiety: Latent Structure and Associations with Anxiety-related Psychological Processes in a Student Sample

Although currently classified as a somatoform disorder, cognitive-behavioral models conceptualize hypochondriasis (HC) as a severe form of health anxiety. The Short Health Anxiety Inventory (SHAI) is a measure derived from this conceptualization that measures health anxiety symptoms across the range of severity. Previous studies have reported inconsistent findings regarding this measure’s factor structure, but these studies employed factor analytic tools that did not account for the categorical nature of SHAI items. The present psychometric study was designed to address these inconsistencies using categorical factor analysis. Using data from a large student sample we found that the SHAI had two factors: Illness Likelihood and Illness Severity. We also examined the relationship between these domains and cognitive variables associated with other anxiety disorders. Results suggested that the psychological processes present in obsessive-compulsive disorder and panic disorder are also associated with health anxiety. Implications for the conceptualization and classification of severe health anxiety are discussed.     

Biological components of colour preference in infancy

Adult colour preference has been summarized quantitatively in terms of weights on the two fundamental neural processes that underlie early colour encoding: the S−(L+M) (‘blue–yellow’) and L−M (‘red–green’) cone‐opponent contrast channels ( Ling, Hurlbert & Robinson, 2006 ; Hurlbert & Ling, 2007 ). Here, we investigate whether colour preference in 4–5‐month‐olds may be analysed in the same way. We recorded infants’ eye‐movements in response to pairwise presentations of eight colour stimuli varying only in hue. Infants looked longest at reddish and shortest at greenish hues. Analyses revealed that the L−M and S−(L+M) contrast between stimulus colour and background explained around half of the variation in infant preference across the hue spectrum. Unlike adult colour preference patterns, there was no evidence for sex differences in the weights on either of the cone‐opponent contrast components. The findings provide a quantitative model of infant colour preference that summarizes variation in infant preference across hues.