Relating Decision‐Making Styles to Social Orientation and Time Approach

Research on decision‐making styles has shown that stylistic differences matter for real‐life outcomes, but less research has explored how styles relate to other differences between individuals. Heeding a call for a more systematic and theoretically sound understanding of decision‐making styles, we investigated the relation between decision‐making styles and specific aspects of social orientation and approach to time in two samples (students, n = 118, and police investigators, n = 90). The results of regression analyses showed that decision‐making styles are related to specific differences in social orientation and time approach. Furthermore, results of structural equation model analyses suggested possible adjustments to the proposed two‐factor model for decision‐making styles (Dewberry, Juanchich, & Narendran, 2013a ). © 2017 The Authors Journal of Behavioral Decision Making Published by John Wiley & Sons Ltd.     

Creative Knowledge Environments

The extent to which an individual's (or a group's) creative potential is expressed depends considerably on the environment in which that individual (or group) works. To understand scientific and technological creativity, one needs to analyze the interactions between individuals or groups and their environment. We put forward the concept of a creative knowledge environment (CKE) to examine the environmental influences on individual and group creativity. After reviewing the research literature relevant to creativity using the CKE framework, we identify the main influences promoting creativity at different levels of organization. The framework provides suggestions as to how best to stimulate CKEs to be more creative. The article concludes by identifying issues where further research is needed.     

Hypothalamo-Pituitary-Adrenocortical Regulation Following Lesions of the Central Nucleus of the Amygdala

Previous reports indicate that the central nucleus of the amygdala (CeA) stimulates adrenocorticotropin and corticosterone secretion, suggesting a role for this region in central hypothalamo-pituitary-adrenocortical (HPA) stress regulation. To evaluate this hypothesis, this study assessed the impact of CeA lesion on the response of hypophysiotrophic paraventricular nucleus (PVN) neurons to acute restraint and chronic unpredictable stress exposure. In contrast to previous reports, CeA lesions did not affect corticosterone or ACTH secretion induced by acute stress. Acute restraint increased PVN corticotropin releasing hormone (CRH) mRNA expression, increased the number of parvocellular PVN neurons expressing the co-secretagogue arginine vasopressin (AVP), and induced cFOS mRNA expression in the parvocellular PVN. However, there was no additional effect of CeA lesion on any measure of PVN activation. Chronic unpredictable stress exposure induced long-term activation of the HPA axis, noted by thymic involution, adrenal hypertrophy and increased PVN CRH mRNA expression. Stress-induced changes in thymus and adrenal weights were not affected by CeA lesion. Further, CeA lesion rats did not differ from controls in post-stress CRH mRNA expression. However, basal CRH mRNA expression was increased in the PVN of CeA rats, suggesting that the CeA plays a role in long-term inhibition of the PVN. The results of these studies are not consistent with the hypothesis that the CeA is necessary for stress-induced pituitary-adrenocortical activation. Rather, this region may play a stressor-specific modulatory role in regulation of HPA function.     

The accuracy of meta-metacognitive judgments: regulating the realism of confidence

Can people improve the realism of their confidence judgments about the correctness of their episodic memory reports by deselecting the least realistic judgments? An assumption of Koriat and Goldsmith's (Psychol Rev 103:490-517, 1996) model is that confidence judgments regulate the reporting of memory reports. We tested whether this assumption generalizes to the regulation of the realism (accuracy) of confidence judgments. In two experiments, 270 adults in separate conditions answered 50 recognition and recall questions about the contents of a just-seen video. After each answer, they made confidence judgments about the answer's correctness. In Experiment 1, the participants in the recognition conditions significantly increased their absolute bias when they excluded 15 questions. In Experiment 2, the participants in the recall condition significantly improved their calibration. The results indicate that recall, more than recognition, offers valid cues for participants to increase the realism of their report. However, the effects were small with only weak support for the conclusion that people have some ability to regulate the realism in their confidence judgments.     

Swedish Legal Professionals' Opinions on Child and Adult Witness Memory‐reporting Capabilities: Using the Method of Indirect Comparisons

Legal professionals' opinions about the memory abilities of child and adult witnesses are important in the legal process. We surveyed 266 legal professionals (Swedish police, prosecutors, and attorneys) and 33 lay judges about their beliefs about child and adult eyewitnesses' recall and metacognitive abilities. Prior research has usually asked for direct comparisons of children and adults but this may be rare in forensic practice. The respondents completed a story questionnaire (about a 9‐ or 45‐year‐old person witnessing an event), allowing indirect, or researcher‐made, comparisons. In contrast to previous research (direct comparisons), our participants mostly rated children and adults to be on an equal level, but within‐group consensus was low. Also, fairly few differences emerged between the groups' beliefs. Finally, the participants' opinions in our study were less in line with results from eyewitness research, compared with previous research using direct comparisons. Implications for legal and research practice are discussed. Copyright © 2015 John Wiley & Sons, Ltd.     

Does mood influence the realism of confidence judgments?

Previous research has shown that mood affects cognition, but the extent to which mood affects meta-cognitive judgments is a relatively over-looked issue. In the current study we investigated how mood influences the degree of realism in participants' confidence judgments (based on an episodic memory task). Using music and film in combination, we successfully induced an elated mood in half of the participants, but failed to induce a sad mood in the other half. In line with previous research, the participants in both conditions were overconfident in their judgments. However, and contrary to our prediction, our data indicated that there was no difference in the realism of the confidence between the conditions. When relating this result to previous research, our conclusion is that there is no, or very little, influence of mood of moderate intensity on the realism of confidence judgments.     

Realism in Confidence Judgments as a Function of Working in Dyads or Alone

This study compares the realism of confidence judgments made by individuals and pairs of their answers to general knowledge questions, using a within-subjects design. In the initial Control condition, subjects first answered 30 questions and then confidence rated the chosen answer. For the next 30 questions (Condition 2), they wrote down an argument for the chosen answer and then confidence-rated their answer. In the third condition, the 40 subjects were divided into 20 pairs who then answered and confidence-rated the same 30 questions as in Condition 2. Pair members were asked to collaborate on all parts of the task. The results showed that overconfidence decreased in the Pair condition compared with the Single conditions. Analysis of the interaction in the Pair condition showed a higher overconfidence in those instances where one pair member dominated the interaction totally. Other analyses of the interaction in the Pair condition also supported the importance of argumentation between the pair members for realistic confidence judgments. A comparison with previous research suggests that the fact that the subjects first attempted the questions individually may have increased the proportion correct answers and limited the increase in confidence in the Pair condition. A control study, checking for the effect of subjects answering the same questions twice, found no effect of repetition for any of the three calibration measures used.     

The effects of source and type of feedback on child witnesses' metamemory accuracy

This study investigated the effect of feedback on the accuracy (realism) of 12‐year‐old children's metacognitive judgments of their answers to questions about a film clip. Two types of judgments were investigated: confidence judgments (on each question) and frequency judgments (i.e. estimates of overall accuracy). The source of feedback, whether it was presented as provided by a teacher or a peer child, did not influence metacognitive accuracy. Four types of feedback were given depending on whether the participant's answer was correct and depending on whether the feedback confirmed or disconfirmed the child's answer. The children showed large overconfidence when they received confirmatory feedback but much less so when they received disconfirmatory feedback. The children gave frequency judgments implying that they had more correct answers than they actually had. No main gender differences were found for any of the measures. The results indicate a high degree of malleability in children's metacognitive judgments. Copyright © 2004 John Wiley & Sons, Ltd.