Information Exchange in Context: Effects of Gender Composition of Group,Accountability, and Intergroup Perception on Group Decision Making1

In the present study, the dissemination of shared and unshared information (cf. Stasser & Titus, 1985) in unstructured group discussion is analyzed. In previous experiments, several manipulations of the task itself were introduced, in search of conditions that could facilitate the exchange of unshared information. As such, these studies neglected the potential impact of context variables on group performance. In the present study, the effects of accountability, intergroup perception, and gender composition of group on information exchange are investigated. The results indicate that heterogeneous groups exchanged more information when a second group was present. Information exchange was not promoted by the presence of an outgroup for homogeneous groups. Groups in the accountability condition displayed more difficulties to reach agreement, but this did not lead to the mentioning of more information.     

Gender Effects in Couples' Sexual Decision Making and Contraceptive Use

Previous research has demonstrated that men tend to be more influential than women in mixed-sex dyads. The current study was an examination of sex differences in influence among dating couples making two different kinds of sexual decisions. In a laboratory decision-making task, male and female partners wrote their opinions about premarital sex and contraception independently, and then worked together as a couple to write a joint opinion. The results replicated previous findings in that the male partners' responses were more similar to the couples' responses than were the females'. An examination of gender influence in the couples' contraceptive behavior , however, indicated that the female partners were more influential than the males in this arena. Thus the data suggest that while men in general may be more influential than women in couples' decision making, there are specific decision domains in which women have considerable influence. Factors that influence gender effects in sexual decision making are discussed.     

Exposure to Unethical Career Events: Effects on Decision Making,Climate, and Socialization

An implicit goal of many interventions intended to enhance integrity is to minimize peoples' exposure to unethical events. The intent of the present effort was to examine if exposure to unethical practices in the course of one's work is related to ethical decision making. Accordingly, 248 doctoral students in the biological, health, and social sciences were asked to complete a field appropriate measure of ethical decision making. In addition, they were asked to complete measures examining the perceived acceptability of unethical events and a measure examining perceptions of ethical climate. When these criterion measures were correlated with a measure examining the frequency with which they had been exposed to unethical events in their day-to-day work, it was found that event exposure was strongly related to ethical decision making but less strongly related to climate perceptions and perceptions of event acceptability. However, these relationships were moderated by level of experience. The implications of these findings for practices intended to improve ethics are discussed.     

Information Suppression and Status Persistence in Group Decision Making The Effects of Communication Media

This experiment investigated the conditions under which a member with information critical for making the best group decision will positively influence the group's final choice. The impact of two factors on group decision quality, information exchange, and perceptions of influence was examined: (a) status differences among members (equal-status vs. mixed-status groups) and (b) communication media (face-to-face vs. computer-mediated communication). Three-person groups were composed such that the critical information required to make the best decision was given only to the low-status member in the mixed-status groups and randomly assigned to one member in the equal-status groups. The results indicated that the mixed-status groups made poorer decisions and made fewer references to critical information than equal-status groups, regardless of the communication medium. Computer-mediated communication suppressed information exchange and the perceived influence of group members, suggesting that the relation between status and communication media is more complex than proposed in past research.     

The Effects of Decision Outcome Dispersion Upon Organizational Decision Making

The effects of varying decision outcome dispersion on organizational decision making were investigated under individual and group decision making conditions. Thirty-six female and pg]36 male subjects made decisions for organizational decision scenarios in which outcomes affected primarily the decision maker, people other than the decision maker, or a group of which the decision maker was a member. Subjects rated their levels of perceived risk and confidence in their decisions and made decisions within a simulated context of either a small or a large organization. Results indicated that subjects perceived significantly less risk and more confidence in their decisions when outcomes affected primarily themselves rather than others regardless of whether the decisions were made individually or by a group. Males perceived their decisions as significantly more risky than females. Induced organizational size did not significantly influence decision making.

     

行为决策研究的新取向——基于经验的决策

基于经验的决策是指,在统计概率情境中,个体通过重复选择与反馈获得选项的收益分布信息后进行的决策.基于经验的决策的研究范式主要包括探索-利用范式和探索→利用范式.其暗含的决策人假设是朴素直觉统计学家.其研究关注的主要内容是描述-经验的差异及其原因,以及基于经验的决策内部过程.未来的研究主要从描述-经验差异的原因、描述性决策范式下的结论的重新检验、基于经验的决策的解释模型及其应用研究等方面进行探讨.     

The Gender Gap on Wall Street: An Empirical Analysis of Confidence in Investment Decision Making

We attempted to identify the personal characteristics that influence confidence in an investment decision in an experiment administered to 1,359 subjects nationwide. Multiple regression was used to control statistically for variation among subjects and to develop a model of investment decision confidence. The most striking finding was that women had significantly lower confidence in an investment task than men, after controlling for all other relevant variables and characteristics including the amount of the investment decision itself. Familiarity with and present attitude about investing in the stock market, college credit hours in accounting and finance, experience in evaluating common stocks, the current level of the stock market, and the investment decision itself (the amount to be invested) were also found to be significant. Age, value of personal portfolio, years of college, and years of business experience were not significant characteristics.     

权力、任务框架对自我和为他人决策时风险偏好的影响

采用情境回忆任务启动被试的权力,并引入收益和损失两种任务框架,综合考察权力高低、任务框架对自我决策和为他人决策时风险偏好的影响。结果表明:(1)在为他人决策中,启动高权力被试有更强的风险偏好,而自我决策中,高、低权力启动组被试风险偏好上无显著差异;(2)在为他人决策中,被试在收益框架和损失框架下的风险偏好差异不显著,而在自我决策中,损失框架下的风险偏好显著高于收益框架;(3)低权力启动的被试,在损失框架下,为他人决策的风险偏好要小于自我决策,而在收益框架下差异不显著;高权力启动的被试无论在收益框架还是损失框架,自我-他人风险决策都不存在显著差异。     

The Effects of Skewed Probability on Decision Making under Ambiguity

Studies have shown that many decision makers knowingly contradict the Savage Postulates when event probabilities are ambiguous, typically displaying ambiguity aversion. For the purposes of this paper, ambiguity is defined operationally as a subjective second-order distribution on probabilities, f(p). Most studies to date on ambiguity have focused on symmetric second-order distributions, demonstrating preference effects of the mean and range or variance of f(p). This research asserts that choice behavior is also significantly and systematically impacted by the skewness of f(p). An experiment using 130 MBA students revealed that subjects are often ambiguity averse when f(p) is negatively skewed but ambiguity seeking when the skewness is positive, even though the mean and variance of f(p) remain constant. These skewness effects are incorporated into a model of choice under ambiguity.     

The Effects of Race and Social Dominance Orientation in Simulated Juror Decision Making1

Recent mock‐jury research often has found no evidence that White jurors are more likely to convict and impose harsher sentences on Black compared to White defendants. Drawing on social dominance theory (Sidanius & Pratto, 1999), this paper argues that this apparent null effect reflects that different racial biases shown by White jurors varying in social dominance orientation (SDO) cancel each other out. A mock‐jury study (n= 70) found no main effect for defendant race, but evidence for a crossover interaction with high SDO individuals showing an anti‐Black bias and with low SDO individuals showing a pro‐Black bias in their guilty judgments and sentence recommendations. The discussion argues race is still a critical factor in White jurors’ decision making.     

The Effects of Note-Taking and Review on Sensemaking and Ethical Decision Making

The effectiveness of case-based learning in ethics education varies widely regarding how cases are presented. Case process instruction may impact case-based ethics education to promote sensemaking processes, ethical sensemaking strategy use, and ethical decision making (EDM) quality. This study examined two teaching techniques, notes and review, and participants completed note-taking and review activities examining a case-based scenario during an ethics education course. Results suggest that providing case notes in outline form improves sensemaking processes, strategy use, and EDM quality. In addition, combining processes of provided notes and passive review results in incremental, additive performance via certain ethical sensemaking strategies and EDM quality.     

Recruiting Through Job Advertisements: The Effects of Cognitive Elaboration on Decision Making

We applied a model of persuasion – the elaboration likelihood model – to investigate whether individuals' decisions about responding to job advertisements are affected by how deeply they process recruitment messages (i.e., elaboration likelihood, EL). We manipulated individuals' (N=112) motivation and ability to carefully process job advertisements (ads). As hypothesized, individuals in the lower (vs. higher) EL conditions chose more ads containing cues unrelated to the job (e.g., bolded font), and fewer ads containing higher quality arguments. Participants also reported that they “skimmed” and carefully read job ads in the past, providing evidence for variability in EL among job seekers. We discuss the implications of the findings for recruiters who wish to increase the size of their applicant pool.     

The Effects of Gender on Career Decision Problems in Young Adults

The authors investigated gender differences in psychological problems in the career decision making (CDM) process of young adults. Specifically, problems with decision anxiety, life-goal awareness, luck-fate orientation, authority orientation, and secondary gain motivation were investigated. Methodology involved administering the Career Decision Diagnostic Assessment (CDDA) instrument to 1,006 college students from four universities. Results indicated no gender differences in global levels of problems in CDM. Women reported more problems with life-goal awareness and authority orientation than did men. Men reported more problems with secondary gain motivations than did women. The results are discussed in terms of implications for gender-differentiated career counseling.     

Effects of Gender and Employment Status on Support Provided to Caregivers

This study was designed to examine the impact of caregiver gender and employment status on laypeople's willingness to support the caregiver. A total of 216 undergraduates were randomly assigned to read 1 of 4 vignettes that described an individual caring for his or her physically ill spouse. Caregiver gender (man or woman) and employment status (full-time employment or retirement) were manipulated. Overall, female participants reported that they would provide higher levels of support than did male participants, particularly with regard to emotional support. Male participants were more likely than female participants to attend to caregiver employment status when rating their level of instrumental support provision. Gender of the caregiver did not exert an effect. Findings are interpreted in light of gender norms that allocate care of sick family members to women.     

The Effect of Incentive Structure on Heuristic Decision Making: The Proportion Heuristic1

When making judgments, individuals often utilize heuristics to interpret information. This paper reports on a series of experiments designed to test the ways in which incentive mechanisms influence the use of a particular heuristic in decision making. These experiments demonstrate how information regarding the number of available practice problems influences the behaviors of individuals preparing for an exam (the proportion heuristic). More importantly, the extent to which this information influences behavior depends critically on the way in which performance incentives are structured. In particular, relative compensation schemes magnify the influence of this heuristic, while joint compensation schemes dampen its influence. These results are discussed with respect to the literature on effective compensation.     

The Effects of Clarity of Decision Rule and Favorability of Verdict on Satisfaction with Resolution of Conflicts1

Favorability of outcome and clarity of decision rule were manipulated in a simulated conflict resolved by an impartial third party. Overall, subjects who received favorable outcomes were more satisfied than were those who received unfavorable outcomes. In addition, favorability of verdict and clarity of decision rule interacted in affecting overall satisfaction. Among subjects receiving an unfavorable verdict, those whose outcomes had been determined by a defined decision rule experienced greater satisfaction than those whose outcomes were based on an unclear, undefined rule. However, given a favorable outcome, the effects of clarity of decision rule were reversed-subjects reported greater satisfaction with the undefined than the defined rule. These results are discussed with reference to the particularism/universalism of defined and undefined decision rules.     

Exposition Effects on Decision Making: Choice and Confidence in Choice

Many of us believe that, after writing about a subject, we understand it more deeply. Studies in education indicate that writing does indeed enhance comprehension. Three experiments examined whether similar “exposition effects” exist for decision making. In these experiments, subjects were confronted with standard framing problems. Positive exposition effects would require that the influence of alternative frames on subjects' choices be diminished by exposition demands. Control subjects made choices under customary, non-exposition instructions. Others chose after writing rationales for their selections (exposition), after explicitly planning to write such rationales, or merely in anticipation of writing the rationales. Exposition reduced framing effects in each of the experiments. The magnitudes of the effects were greatest for subjects who wrote before choosing. Also, exposition markedly increased subjects' confidence that their choices were appropriate. Theoretical and practical implications are discussed.