Creative thinking in adolescents with attention deficit hyperactivity disorder (ADHD).

A widened attentional focus, that is typically associated with ADHD, has been postulated to be accompanied by enhanced creative ability. However, creativity has been only limitedly examined in ADHD. Performance across several creativity measures were investigated in three groups: adolescents with ADHD, those with conduct disorder, and a healthy control sample. The ADHD group exhibited selective cognitive advantages and disadvantages by demonstrating an enhanced ability in overcoming the constraining influence of examples, but a reduced capacity to generate a functional invention during an imagery task. These findings are interpreted with reference to inhibitory control mechanisms and the contextual modulation of creative cognition.     

The influence of experimentally created extrapersonal associations on the Implicit Association Test

We examined the influence of extrapersonal associations (Olson & Fazio, 2004)—associations that neither form the basis of the attitude nor become activated automatically in response to the object—on the Implicit Association Test (Greenwald, McGhee, & Schwartz, 1998) by experimentally creating both attitudes and extrapersonal associations. The results revealed that participants who were given extrapersonal information that was inconsistent with their own attitudes were affected by this information when they later performed an IAT. They exhibited significantly reduced IAT scores compared to participants who were provided attitude-consistent extrapersonal information. This attenuation of the IAT effect occurred despite the fact that participants rated the source of the attitude-inconsistent extrapersonal information as irrational and foolish. On the other hand, the extrapersonal associations did not influence a subliminal priming measure in Experiment 1, nor a personalized version of the IAT (Olson & Fazio, 2004) in Experiment 2. These measures proved sensitive to the attitude, regardless of the congruency of the extrapersonal information.     

The historiography of Swedish sociology and the bounding of disciplinary identity

Bounding a scientific discipline is a way of regulating its cognitive direction as well as its relations to neighboring disciplines and extra-academic authorities. In this process of identity making, disciplinary history often is a crucial element. In this article, focusing on the historiography of Swedish sociology and the reception of Gustaf Steffen, Sweden's first professional sociologist, it is argued that Steffen's marginalized role in the traditional accounts should be understood not only with reference to his supposed theoretical shortcomings, but also in the historical context of the early postwar reestablishment of sociology as an academic discipline and its prevalent need for a new disciplinary identity, strategically adjusted to the contemporary institutional and political settings.     

Aging and the perception of 3-D shape from dynamic patterns of binocular disparity

In two experiments, we investigated the ability of younger and older observers to perceive and discriminate 3-D shape from static and dynamic patterns of binocular disparity. In both experiments, the younger observers' discrimination accuracies were 20% higher than those of the older observers. Despite this quantitative difference, in all other respects the older observers performed similarly to the younger observers. Both age groups were similarly affected by changes in the magnitude of binocular disparity, by reductions in binocular correspondence, and by increases in the speed of stereoscopic motion. In addition, observers in both age groups exhibited an advantage in performance for dynamic stereograms when the patterns of binocular disparity contained significant amounts of correspondence "noise." The process of aging does affect stereopsis, but the effects are quantitative rather than qualitative.     

How do we decide whom our friends are? Defining levels of friendship in Poland and the United States

Participants were 57 U.S. college students and 56 Polish university students and copper mine workers who judged the intimacy of 9 hypothetical relationships and also rated the intensity of their relationships with a best friend, a friend, and an acquaintance on the Friendship Intensity Measurement Scale (FIMS; T. S. Arunkumar & B. Dharmangadan, 2001). The present results confirmed that people perceive (a) relationships with best friends as more intense and intimate than other friendships and (b) other friendships as more intense and intimate than acquaintanceships. The results also indicated that Americans perceive all of their relationships, ranging from mere acquaintanceships to intimate friendships, as more intense and intimate than do Poles. It was somewhat surprising that there were no sex differences in either country in the perception of relationships. The authors discussed the research in the context of the difficulty of defining what friendship is and how an individual's cultural background might interact with person variables such as age and sex.     

Comparative analysis of the risk-handling procedures for gene technology applications in medical and plant science

In this paper we analyse how the risks associated with research on transgenic plants are regulated in Sweden. The paper outlines the way in which pilot projects in the plant sciences are overseen in Sweden, and discusses the international and national background to the current regulatory system. The historical, and hitherto unexplored, reasons for the evolution of current administrative and legislative procedures in plant science are of particular interest. Specifically, we discuss similarities and differences in the regulation of medicine and plant science, and we examine the tendency towards dichotomizing risk — focusing on social/ethical risks in medicine and biological risks in plant science. The context of this article is the Synpraxia research project, an inter-disciplinary program combining expertise in sciences and the humanities.     

A Brief Scale for Measuring “Behavioral Inhibition to the Unfamiliar” in Children

The behavioral inhibition scale (BIS) is a brief rating scale for measuring behavioral inhibition in children. The present study examined the test–retest stability of the BIS in a sample of 7–12-year-olds consisting of inhibited and non-inhibited children (N = 83). Results demonstrated that the BIS scores were fairly stable over a 2-year period, with a test–retest correlation of .77. Further, the BIS scores of inhibited children significantly increased over the 2-year period, whereas those of the non-inhibited comparison group significantly decreased. Finally, the BIS was in a theoretically meaningful way associated with temperamental traits as measured by the Rothbart scales. Altogether, these results provide support for the reliability and validity of the BIS.     

When a Psychometric Advance Falls in the Forest

Borsboom (2006) attacks psychologists for failing to incorporate psychometric advances in their work, discusses factors that contribute to this regrettable situation, and offers suggestions for ameliorating it. This commentary applauds Borsboom for calling the field to task on this issue and notes additional problems in the field regarding measurement that he could add to his critique. It also chastises Borsboom for occasionally being unnecessarily perjorative in his critique, noting that negative rhetoric is unlikely to make converts of offenders. Finally, it exhorts psychometricians to make their work more accessible and points to Borsboom, Mellenbergh, and Van Heerden (2003) as an excellent example of how this can be done. I wish to thank Frank Schmidt for his help in preparing this paper. Requests for reprints should be sent to la-clark@uiowa.edu.     

Gender Differences in the Construct Validity of the Silencing the Self Scale

Gender differences in the construct validity of Jack's (1991) Silencing the Self Scale (STSS) were assessed using 187 female and 169 male undergraduates. Results of exploratory and confirmatory factor analyses revealed gender differences in the scale's latent structure and at best provided only limited support for the validity of the scale's four subscales for women. Among men, the studies exposed a weakness in the scale's construct validity and provided insights into possible alternative interpretations made by men when responding to the scale's items. Convergent and discriminant validity of the scale were assessed by correlating it with measures of neuroticism and attachment. Whereas the construct validity of the STSS for use with women was supported, evidence was weaker for men. For men, data suggest that the STSS, in part, taps a motive to avoid intimacy and relationship situations that limit one's sense of independence and autonomy, a construct incongruous with Jack's notion of self-silencing.     

Psychiatric patient- and informant-reported personality: predicting concurrent and future behavior

The authors investigated the criterion and incremental validity of personality reports from psychiatric patients and knowledgeable informants in predicting patient substance use, social and risky behaviors, and psychological distress. Patient and informant reports of patient personality and behavior were collected from an adult psychiatric sample (N = 94). Hierarchical regressions indicated that patient reports of personality accounted for significant variance in both concurrent (17%-42%) and future behavior assessed 1 year later (17%-40%). Informant reports contributed significantly to the prediction of several behaviors and most strongly to social behaviors. Behaviors were predicted equally well by self-reports and informant reports in prospective as in concurrent regressions. Thus, both patient and informant reports of personality contribute importantly to prediction of behavior, and predictive ability is stable across time.