Young‐age gender differences in mathematics mediated by independent control or uncontrollability

We studied whether the origins of math anxiety can be related to a biologically supported framework of stress induction: (un)controllability perception, here indicated by self‐reported independent efforts in mathematics. Math anxiety was tested in 182 children (8‐ to 11‐year‐olds). Latent factor modeling was used to test hypotheses on plausible causal processes and mediations within competing models in quasi‐experimental contrasts. Uncontrollability perception in mathematics, or (in)dependence of efforts, best fit the data as an antecedent of math anxiety. In addition, the relationship of math anxiety with gender was fully mediated by adaptive perception of control (i.e. controllability). That is, young boys differ from girls in terms of their experience of control in mathematics learning. These differences influence math anxiety. Our findings are consistent with recent suggestions in clinical literature according to which uncontrollability makes women more susceptible to fear and anxiety disorders. A video abstract of this article can be viewed at http://www.youtube.com/watch?v=I4b_47Y-e_U     

An Examination of the Short Need for Cognition Scale

The 18-item short Need for Cognition Scale (NCS; Cacioppo, Petty, & Kao, 1984) was administered to 708 female and 510 male undergraduates. Consistent with the findings of Cacioppo et al., a principal components analysis indicated one dominant factor. The findings also suggest that the short NCS is relatively gender neutral in this homogeneous population.     

Relationships Between Need for Cognition,Knowledge, and Verbal Ability

The authors investigated the relationships between need for cognition. knowledge, and verbal ability. Participants completed scales that measured their need for cognition, verbal ability, and knowledge about people and events that occurred during the Vietnam War era. Correlational analyses showed that the participants' need for cognition scores were modestly but positively correlated with verbal ability and knowledge and that verbal ability and knowledge were also positively correlated. The correlation between need for cognition and knowledge was small but significant when verbal ability was controlled. The conclusion drawn from these results is that need for cognition contributes to the acquisition of knowledge beyond the contribution of verbal ability.     

Filtered Out,but Not by Skill: The Gender Gap in Pursing Mathematics at a High-Stakes Exam

Sex Roles - The present paper concerns the gender gap in pursuing mathematics at high stakes matriculation exams in Poland. Results of the optional Extended Exam in Mathematics (EEM) serve as the...     

Intergroup Cooperation in Common Pool Resource Dilemmas

Fundamental problems of environmental sustainability, including climate change and fisheries management, require collective action on a scale that transcends the political and cultural boundaries of the nation-state. Rational, self-interested neoclassical economic theories of human behavior predict tragedy in the absence of third party enforcement of agreements and practical difficulties that prevent privatization. Evolutionary biology offers a theory of cooperation, but more often than not in a context of discrimination against other groups. That is, in-group boundaries are necessarily defined by those excluded as members of out-groups. However, in some settings human’s exhibit behavior that is inconsistent with both rational economic and group driven cooperation of evolutionary biological theory. This paper reports the results of a non-cooperative game-theoretic exercise that models a tragedy of the commons problem in which groups of players may advance their own positions only at the expense of other groups. Students enrolled from multiple universities and assigned to different multi-university identity groups participated in experiments that repeatedly resulted in cooperative outcomes despite intergroup conflicts and expressions of group identity. We offer three possible explanations: (1) students were cooperative because they were in an academic setting; (2) students may have viewed their instructors as the out-group; or (3) the emergence of a small number of influential, ethical leaders is sufficient to ensure cooperation amongst the larger groups. From our data and analysis, we draw out lessons that may help to inform approaches for institutional design and policy negotiations, particularly in climate change management.     

The Effect of Smiling and of Head Tilting on Person Perception

A survey on alcohol and drug use was completed by 1,291 college students. As predicted from research on self-schemas, greater self-efficacy was associated with lower substance use among respondents who indicated having been treated for substance abuse but not among those who had not received treatment. Also, those who reported receiving treatment were more likely than the others to report having attended campus programs on substance abuse. These findings suggest that substance use and its control are important aspects of the self-definition of those who receive treatment for substance abuse.     

Lidocaine attenuates anisomycin-induced amnesia and release of norepinephrine in the amygdala

When administered near the time of training, protein synthesis inhibitors such as anisomycin impair later memory. A common interpretation of these findings is that memory consolidation requires new protein synthesis initiated by training. However, recent findings support an alternative interpretation that abnormally large increases in neurotransmitter release after injections of anisomycin may be responsible for producing amnesia. In the present study, a local anesthetic was administered prior to anisomycin injections in an attempt to mitigate neurotransmitter actions and thereby attenuate the resulting amnesia. Rats received lidocaine and anisomycin injections into the amygdala 130 and 120 min, respectively, prior to inhibitory avoidance training. Memory tests 48 h later revealed that lidocaine attenuated anisomycin-induced amnesia. In other rats, in vivo microdialysis was performed at the site of amygdala infusion of lidocaine and anisomycin. As seen previously, anisomycin injections produced large increases in release of norepinephrine in the amygdala. Lidocaine attenuated the anisomycin-induced increase in release of norepinephrine but did not reverse anisomycin inhibition of protein synthesis, as assessed by c-Fos immunohistochemistry. These findings are consistent with past evidence suggesting that anisomycin causes amnesia by initiating abnormal release of neurotransmitters in response to the inhibition of protein synthesis.     

Psychometric properties of the Social Problem Solving Inventory (SPSI) with normal and emotionally disturbed adolescents

The factor structure of the Social Problem Solving Inventory (SPSI; D'Zurilla & Nezu, 1990) was evaluated with a sample of 708 normal adolescents. Confirmatory factor analysis supported the empirically derived five-factor model reported by D'Zurilla and Maydeu-Olivares (1994) using an adult sample, but not the theoretically derived seven-factor structure of the original SPSI. The psychometric properties of the original and revised inventories are reported for normal adolescents and psychiatrically hospitalized adolescents (n=63). Internal consistency and reliability estimates were adequate. Support for the validity of the revised SPSI was demonstrated by examining the relationship between social skills, depression, and social problem solving; in addition, differences between normal and inpatient adolescent samples were examined. The findings are discussed in terms of the utility of the inventories with adolescents.     

Sex differences in adjustment correlates of locus of control dimensions

This study investigated the hypothesis that dimensions of locus of control are differentially predictive of adjustment criteria for males and females. Two samples of undergraduates completed the Reid-Ware Three-Factor Locus of Control Scale and either the Texas Social Behavior Inventory or the Zander and Thomas version of the Barron ego strength scale. For both males and females, internals reported greater self-esteem and ego strength. However, for males, the fatalism dimension was the strongest predictor for each adjustment correlate. The social system control dimension was not predictive for males in either case. For females, the social system control dimension was predictive for each adjustment correlate, although it was not consistently the strongest predictor. The results are consistent with research on sex differences in parental antecedents of locus of control. Methodological implications of the differential predictiveness of locus of control dimensions are also addressed.