Genes Determine Stability and the Environment Determines Change in Cognitive Ability During 35 Years of Adulthood

ABSTRACT— Previous research has demonstrated stability of cognitive ability and marked heritability during adulthood, but questions remain about the extent to which genetic factors account for this stability. We conducted a 35-year longitudinal assessment of general cognitive ability using the Armed Forces Qualification Test administered to 7,232 male twins in early adulthood and readministered to a subset of 1,237 twins during late middle age. The proportion of variance in cognitive functioning explained by genetic factors was .49 in young adulthood and .57 in late middle age. The correlation between the two administrations was .74 with a genetic correlation of 1.0, indicating that the same genetic influences operated at both times. Genetic factors were primarily responsible for stability, and nonshared environmental factors were primarily responsible for change. The genetic factors influencing cognition may change across other eras, but the same genetic influences are operating from early adulthood to late middle age.     

Applying a Randomized Interdependent Group Contingency Component to Classwide Peer Tutoring for Multiplication Fact Fluency

Researchers have documented the positive effects of classwide peer tutoring on academic performance, engagement, and other social behaviors of students with and without disabilities. Commonly, in classwide peer tutoring, students are paired and the class is divided in half. Points are awarded for tutoring behavior and academic responding during the tutoring session. At the end of the session, the half of the class with the most points earns a reward. In the current study, a fifth-grade teacher implemented classwide peer tutoring for multiplication facts. Instead of the traditional reinforcement system, a randomized classwide interdependent group contingency was implemented. Applying a multiple-probe design across problem sets, students demonstrated increased multiplication fact fluency across three problem sets. Discussion focuses on applied implications for contingency management when implementing classwide peer tutoring programs.     

Memory fragments as components of autobiographical knowledge

Adults described and dated two kinds of personal remembrances: a fragment—a memory moment that is largely bereft of context—and an episodic, personal event memory—a narrative that consists of a number of related events. In Experiment 1 subjects reported memories from when they were 0–8 years of age and in Experiment 2, from when they were 0–16 years of age. Fragments were judged to be older than event memories, especially in Experiment 2 where the estimated ages of most fragments were from 0 to 8 years and of most episodic memories, from 8 to 16 years. Ratings of various features of the two kinds of memories also differed. We conclude that isolated memory moments possess validity and that although they are most likely to arise when the autobiographical memory system is not fully developed, they can also originate during a time when it is. Copyright © 2006 John Wiley & Sons, Ltd.     

Suicidal Thinking and Perfectionism: The Role of Goal Adjustment and Behavioral Inhibition/Activation Systems (BIS/BAS)

The current study investigated the associations among perfectionism, goal adjustment, behavioral activation sensitivity (BAS), behavioral inhibition sensitivity (BIS), and suicidal thinking. Participants (n = 255) completed the Multidimensional Perfectionism Scale, the BIS/BAS scale, the Goal Adjustment scale, and a measure of suicidal thinking. The findings showed that socially prescribed perfectionism was the only perfectionism dimension associated with suicidal thinking. Goal reengagement (but not goal disengagement) is an important construct in the suicidal process. A series of hierarchical regression analyses showed that goal reengagement moderates and mediates the effect of socially prescribed perfectionism on suicidal thinking. BIS was also associated with suicidal behavior but its effect was mediated via socially prescribed perfectionism. The theoretical and treatment implications of the relationships between socially prescribed perfectionism, goal reengagement, and suicidal thinking and between BIS, socially prescribed perfectionism, and suicidal thinking are discussed. Future research is required to determine whether these relationships are predictive of suicidal thinking and behavior over time.     

Does anxiety sensitivity predict symptoms of panic, depression, and social anxiety?

This study examined whether the lower-order factors of the Anxiety Sensitivity Index (ASI) exhibited specificity in predicting symptoms of panic, depression, and social anxiety prospectively. This question was addressed using a sample of undergraduates stratified to represent low, medium, and high levels of anxiety sensitivity (AS). It was hypothesized that the physical concerns, mental concerns, and social concerns subscales of the ASI would predict increases in panic, depression, and social anxiety symptoms, respectively, one year later. Results found that the physical concerns subscale predicted increases in both panic and depressive symptoms. Neither the mental concerns nor the social concerns subscales predicted significant variance in any of the Time 2 symptoms. Theoretical implications of these data for AS are discussed.     

On the self-regulation of implicit and explicit prejudice: a self -determination theory perspective

The present study identifies a broad taxonomy of motives underlying the desire to regulate prejudice and assess the impact of motivation to regulate prejudice on levels of explicit and implicit prejudice. Using self-determination theory as the foundation, six forms of motivation to regulate prejudice are proposed. In Study 1 (N = 257), an exploratory factor analysis reveals evidence for the six proposed dimensions. In Study 2 (N = 198), the six-factor taxonomy of motivation to regulate prejudice is further validated using a confirmatory factor analysis, and construct validity is obtained. In Study 3 (N = 62), motivation to regulate prejudice is manipulated before participants complete the Implicit Association Test (IAT) and explicit measures of prejudice. Results reveal that those with highly self-determined regulation of prejudice demonstrate lower implicit and explicit prejudice than their less self-determined counterparts. Results are discussed in terms of an increased understanding of the motivation to control prejudice.     

Entrepreneurship research and practice: a call to action for psychology

Entrepreneurship is a major source of employment, economic growth, and innovation, promoting product and service quality, competition, and economic flexibility. It is also a mechanism by which many people enter the society's economic and social mainstream, aiding culture formation, population integration, and social mobility. This article aims to illuminate research opportunities for psychologists by exposing gaps in the entrepreneurship literature and describing how these gaps can be filled. A "call to action" is issued to psychologists to develop theory and undertake empirical research focusing on five key topic areas: the personality characteristics of entrepreneurs, the psychopathology of entrepreneurs, entrepreneurial cognition, entrepreneurship education, and international entrepreneurship. Methodological issues are discussed and recommendations provided. It is shown that psychologists can help identify the factors that influence new venture creation and success and inform the construction of public policy to facilitate entrepreneurship.     

Licensure of Internationally Educated Nurses Seeking Professional Careers in the Province of Alberta in Canada

While the regulation of nursing practice through licensure ensures that nurses meet minimum standards for safe competent and ethical care, it also inhibits integration of immigrant internationally educated nurses (IENs) into the Canadian professional labour market. With projections of significant nurse workforce shortages by 2010, there is impetus to enhance the numbers of licensed professional nurses through multiple strategies. The licensure processes and accompanying tensions in the Canadian context are described. As professional nurse licensure in Canada is a provincial responsibility, the situation in the Province of Alberta is used as an example. Suggestions for policy development and research include needs for better data and for gender-based analysis to address barriers to IEN licensure. The ability to practice in one’s chosen profession can be a major factor in integration of immigrants into Canadian society and thus a powerful factor in attraction and retention of highly skilled immigrants.     

Maternal territoriality as an offspring defense strategy in red swamp crayfish (Procambarus clarkii,Girard)

The offspring‐defense hypothesis of maternal territoriality in solitary and semisocial mammals [Wolff JO and Peterson JA. 1998. Ethol Ecol Evol 10:227–239] was evaluated in another taxon using maternal and nonmaternal female red swamp crayfish (Procambarus clarkii), a freshwater decapod crustacean that shows pronounced shelter‐related maternal aggression. The maternal females were of three different categories: (1) ovigerous, (2) carrying primarily stage 1 offspring, or (3) tending offspring that were primarily stage 2. Each female was in residence in an individual aquarium containing only a gravel substrate for 24 hr prior to serial intrusions by male conspecifics. Virtually all of the residents, maternal and nonmaternal, excavated a depression (shelter) in the substrate prior to the first intrusion. The results showed that residents in each of the maternal categories won a significantly higher proportion of their encounters than did the nonmaternal residents, which showed only negligible defense and lost every encounter. However, there were no significant differences in encounter outcomes between the maternal resident categories. There was clear defense of the shelter by maternal females, with virtually all fighting being in or around it, thus demonstrating stable, heightened territorial defense throughout these maternal phases of reproduction. This support of the offspring‐defense hypothesis of maternal territoriality is the first such evidence for a freshwater crustacean and is very similar to that recently reported in a related marine decapod, the American lobster (H. americanus). Aggr. Behav. 27:391–403, 2001. © 2001 Wiley‐Liss, Inc.     

The promise of qualitative inquiry for positive psychology: Diversifying methods

Abstract

This article offers a corrective for positive psychology, viewing qualitative methods as a paradigm of equal value to quantitative methods for psychologists interested in better understanding human strengths. Gergen, Josselson, and Freeman’s framework for qualitative psychology in general, along with other qualitative theory, will be utilized as a basis for application to positive psychology in particular. Qualitative inquiry’s potential for enriching positive psychology will be described, noting several qualitative research approaches. Then, the role of qualitative psychology in promoting the flourishing of positive psychology will be examined, discussing implications for theoretical advancements, building community, and enhancing psychology through interdisciplinarity. Finally, the possibility for qualitative methods in positive psychology to build relationships between academia and society will be explored; in particular, the nature of this collaboration, and the communication of positive psychology to the public will be noted. The conclusion notes how such potentials may be realized given current realities.