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PubMed2004

Theories of conditional reasoning: a developmental examination of competing hypotheses.

Children and adolescents were presented with problems that contained deontic (i.e., if action p is taken, then precondition q must be met) or causal (i.e., if event p occurs, then event q will transpire) conditionals and that varied in the ease with which alternative antecedents could be activated. Results showed that inferences were linked to the availability of alternative antecedents and the generation of "disabling" conditions (claims that the conditionals were false under specific circumstances). Age-related developments were found only on problems involving indeterminate inferences. Correlations among inferences differed for children and adolescents. The findings provide stronger support for domain-general theories than for domain-specific theories of reasoning and suggest, under some conditions, age-related changes in the roles of implicit and explicit processing.

Adolescent↗

PubMed2000

"I knew we would win": hindsight bias for favorable and unfavorable team decision outcomes.

This study examined hindsight bias for team decisions in a competitive setting in which groups attempted to outperform each other. It was anticipated that, because of self-serving mechanisms, individuals would show hindsight bias only when decision outcomes allowed them to take credit for their own team's success or to downgrade another team for being unsuccessful. MBA students playing a market simulation game made hindsight estimates regarding the likelihood that either their own or another team would perform well. Consistent with a self-serving interpretation, when decision outcomes were favorable individuals evaluating their own team, but not those evaluating another, showed hindsight bias. When outcomes were unfavorable individuals evaluating their own team did not show hindsight bias, but those evaluating another team did. Discussion focuses on implications of hindsight bias in team decision-making settings.

Analysis of Variance↗

PubMed2002

Job-decision inconsistencies involving social comparison information: the role of dominating alternatives.

Previous research on joint versus separate preference reversals has demonstrated that individuals focus on social comparison information when they are evaluating a single option but focus on absolute salary when they are considering more than 1 option. Study 1 demonstrates that social comparison information is important in multiple option scenarios when an option favorable on social comparison dominates an inferior, 3rd alternative. Study 2 examines why dominating alternatives are so attractive by investigating the role that the value-shift, weight-change, and emergent-value models play in explaining the pattern of results obtained in Study 1. Results provide support for the value-shift and emergent-value models and further suggest that these 2 models may be interrelated, with justification (emergent-value model) mediating the relationship between the attractiveness of the attributes (value-shift model) and the attractiveness of the dominating alternative.

Competitive Behavior↗

PubMed2005

Organizational partnerships in China: self-interest, goal interdependence, and opportunism.

Opportunism in organizational partnerships may be understood in terms of how partners conclude that their self-interests are related to each other. When partners believe that their goals are competitively but not cooperatively related, they are tempted to pursue their self-interests opportunistically. Cognitive understandings and values of a shared vision may help partners believe their goals are cooperatively related. Results from 103 pairs of customer and supplier organizations support the argument that partnerships are not inevitably threatened by opportunism. Using structural equation analysis, the authors suggested that shared vision can help partners develop cooperative goals that lead to low levels of opportunism. These results suggest that a shared vision and cooperative goals are important foundations for effective organizational partnerships.

China↗

PubMed2006

A contingent view of reactions to objective pay conditions: interdependence among pay structure characteristics and pay relative to internal and external referents.

The authors studied the general proposition that because social comparisons are so central to how people react to pay, the effect of an important pay condition likely depends on a social pay comparison that is relevant to that condition. To investigate this, the authors used actual pay data on more than 2,000 public school teachers across more than 400 school districts and tested whether pay equity perceptions resulted from interactions among objective measures of structural (pay dispersion, entry-level pay, pay range maximum, external competitiveness) and individual (pay relative to internal referents, pay relative to external referents) pay conditions. Cross-level interactions indicated that pay relative to internal referents moderated how pay structure conditions related to pay equity perceptions. Additionally, within-level interactions indicated that the effect of employee standing in the external pay hierarchy depended on where one stood in the internal pay hierarchy; this dynamic emerged both for individual-level measures of current standing and for organization-level measures that suggested future standing.

Attitude↗

PubMed2003

The influence of egocentrism and focalism on people's optimism in competitions: when what affects us equally affects me more.

Six experiments investigated people's optimism in competitions. The studies involved hypothetical and real competitions (course grades in Experiments 1 and 2, a trivia game in Experiments 3-5, and a poker game in Experiment 6) in which the presence of shared adversities and benefits (factors that would generally hinder or help the absolute performance of all competitors) was manipulated. Shared adversities tended to reduce people's subjective likelihoods of winning, whereas shared benefits tended to increase them. The findings suggest that when people judge their likelihood of winning, their assessments of their own strengths and weaknesses have greater impact than their assessments of their competitors' strengths and weaknesses. We identify egocentrism and focalism as two causes of the bias. The experiments revealed moderators of this bias, but also illustrated its robust nature across a variety of conditions.

Adult↗

PubMed2004

From seeing to being: subliminal social comparisons affect implicit and explicit self-evaluations.

The authors hypothesize that social comparisons can have automatic influences on self-perceptions. This was tested by determining whether subliminal exposure to comparison information influences implicit and explicit self-evaluation. Study 1 showed that subliminal exposure to social comparison information increased the accessibility of the self. Study 2 revealed that subliminal exposure to social comparison information resulted in a contrast effect on explicit self-evaluation. Study 3 showed that subliminal exposure to social comparison information affects self-evaluations more easily than it affects mood or evaluations of other people. Studies 4 and 5 replicated these self-evaluation effects and extended them to implicit measures. Study 6 showed that automatic comparisons are responsive to a person's perceptual needs, such that they only occur when people are uncertain about themselves. Implications for theories of social cognition, judgment, and comparison are discussed.

Affect↗

PubMed2004

The ups and downs of social comparison: mechanisms of assimilation and contrast.

Social comparisons influence self-evaluations in multiple ways. Sometimes self-evaluations are assimilated toward a given standard. At other times, they are contrasted away from the standard. On the basis of the selective accessibility model (T. Mussweiler, 2003a), the authors hypothesized that assimilation results if judges engage in the comparison process of similarity testing and selectively focus on similarities to the standard, whereas contrast occurs if judges engage in dissimilarity testing and selectively focus on differences. If these alternative comparison mechanisms are indeed at play, then assimilative and contrastive social comparisons should be accompanied by diverging informational foci on similarities versus differences. Results of 5 studies support this reasoning, demonstrating that assimilation results under conditions that foster similarity testing, whereas contrast occurs under conditions that foster dissimilarity testing. Furthermore, assimilative social comparisons are accompanied by a general informational focus on similarities, whereas contrastive comparisons are accompanied by a focus on differences.

Competitive Behavior↗

PubMed2005

Effects of implicit power motivation on men's and women's implicit learning and testosterone changes after social victory or defeat.

Two studies examined interactions of implicit power motivation and experimentally varied victory or defeat in a contest on implicit learning of a visuomotor sequence associated with the contest outcome and changes in testosterone and self-reported affect. In men and women, power motivation predicted enhanced learning (sequence-execution accuracy) after a victory and impaired learning after a defeat. In men, power motivation predicted testosterone increases among winners and decreases among losers, and testosterone decreases mediated the negative effect of power motivation on learning in losers. In women, power motivation predicted postcontest testosterone increases, particularly among losers. In both men and women, self-reported affective states were influenced only by contest outcome and were unrelated to participants' testosterone changes or implicit learning.

Adult↗

PubMed2005

Competition, cooperation, and the effects of others on me.

Four studies were conducted to test the notion that whether one competes against or cooperates with a comparison target can serve as an important determinant of the direction (contrast or assimilation) of self-evaluative social comparison effects. In Study 1, cooperative-competitive orientation was treated as an individual difference variable, and it was shown that social comparison led to contrast for individuals with a more competitive orientation, whereas assimilation occurred for individuals with a more cooperative orientation. Study 2 replicated this result, treating cooperative-competitive orientation as a contextual variable. In Study 3, it was demonstrated that to obtain this pattern of results it is not necessary for perceivers to believe that they will be either competing or cooperating with the comparison target. Simply activating the relevant concepts is sufficient. The final studies demonstrated that competition activates a "difference" focus and cooperation activates a "similarity" focus.

Adult↗

PubMed2006

Motivated information processing, strategic choice, and the quality of negotiated agreement.

The authors tested a motivated information-processing model of negotiation: To reach high joint outcomes, negotiators need a deep understanding of the task, which requires them to exchange information and to process new information systematically. All this depends on social motivation, epistemic motivation (EM), and their interaction. Indeed, when EM (manipulated by holding negotiators process accountability or not) was high rather than low and prosocial rather than proself, negotiators recall more cooperative than competitive tactics (Experiment 1), had more trust, and reached higher joint outcomes (Experiment 2). Experiment 3 showed that under high EM, negotiators who received cooperative, rather than competitive, tactics reached higher joint outcomes because they engaged in more problem solving. Under low EM, negotiators made more concessions and reached low joint outcomes. Implications for negotiation theory and for future work in this area are discussed.

Analysis of Variance↗

PubMed2006

The costs and benefits of undoing egocentric responsibility assessments in groups.

Individuals working in groups often egocentrically believe they have contributed more of the total work than is logically possible. Actively considering others' contributions effectively reduces these egocentric assessments, but this research suggests that undoing egocentric biases in groups may have some unexpected costs. Four experiments demonstrate that members who contributed much to the group outcome are actually less satisfied and less interested in future collaborations after considering others' contributions compared with those who contributed little. This was especially true in cooperative groups. Egocentric biases in responsibility allocation can create conflict, but this research suggests that undoing these biases can have some unfortunate consequences. Some members who look beyond their own perspective may not like what they see.

Altruism↗

PubMed1999

Does competition enhance or inhibit motor performance: a meta-analysis.

A meta-analysis was conducted on the relative impact of cooperative, competitive, and individualistic efforts on motor skills performance. Competition was divided into 3 groups: zero sum, appropriate, and unclear. The motor skills tasks were divided into means-interdependent and means-independent tasks. The dependent variables were achievement-performance, interpersonal attraction, social support, and self-esteem. A total of 64 studies met the criteria for inclusion. Effects sizes were computed, and confidence intervals were used to determine their significance. A fail-safe sample size was computed to determine how many additional studies were needed to change the significance of the results. Cooperation resulted in higher achievement for means-interdependent tasks in zero-sum competition, unclear competition, and individualistic efforts, and it promoted higher achievement for means-independent tasks for unclear competition and individualistic efforts. For all comparisons, cooperation resulted in greater interpersonal attraction, social support, and self-esteem.

Achievement↗

PubMed2003

Implicit memory for novel figure-ground displays includes a history of cross-border competition.

When configural cues specify that a figure lies on opposite sides of a repeated border in prime andprobe shapes, probe latencies are longer than when prime and probe borders are unrelated. Do such results reflect negative priming for the shape of the prime ground or cross-border competition from figure memory? The present study tested these alternatives by adding partial closure as a competing cue and reducing the similarity between the prime ground and the shape of the probe. Results supported the cross-border competition interpretation. Additional findings were that partial closure is a configural cue and that response effects can emerge from the potential shape on the ground side of a border. One prior experience was sufficient for these effects.

Competitive Behavior↗

PubMed2003

Working-memory capacity and the control of attention: the contributions of goal neglect, response competition, and task set to Stroop interference.

Individual differences in working-memory (WM) capacity predicted performance on the Stroop task in 5 experiments, indicating the importance of executive control and goal maintenance to selective attention. When the Stroop task encouraged goal neglect by including large numbers of congruent trials (RED presented in red), low WM individuals committed more errors than did high WM individuals on the rare incongruent trials (BLUE in red) that required maintaining access to the "ignore-the-word" goal for accurate responding. In contrast, in tasks with no or few congruent trials, or in high-congruency tasks that followed low-congruency tasks, WM predicted response-time interference. WM was related to latency, not accuracy, in contexts that reinforced the task goal and so minimized the difficulty of actively maintaining it. The data and a literature review suggest that Stroop interference is jointly determined by 2 mechanisms, goal maintenance and competition resolution, and that the dominance of each depends on WM capacity, as well as the task set induced by current and previous contexts.

Adult↗

PubMed2006

Recency-to-primacy shift in cue competition.

Three experiments were conducted using a lick-suppression preparation with rats to determine whether temporal and physical context shifts modulate the effectiveness of 2 sequentially trained blocking stimuli. Experiment 1 ascertained that it is possible to obtain blocking by conditioning rats to react to a target cue using 2 different blocking cues, each trained with a single-phase blocking paradigm. Experiment 2 showed that the more recently trained blocking stimulus was more effective (i.e., showed a recency effect) when testing was conducted immediately after training, but a long retention interval attenuated blocking by the most recently trained blocking stimulus and increased blocking by the initially trained blocking stimulus (i.e., a recency-to-primacy shift). This shift from recency to primacy affected in Experiment 2 by varying the retention interval was replicated in Experiment 3 by changing the physical context between training and testing. Taken together, the results indicate that the effectiveness of sequentially trained competing stimuli follows the same recency-to-primacy shift rule that is seen in traditional interference phenomena.

Animals↗

PubMed1991

Social feeding reverses learned flavor aversions in spotted hyenas (Crocuta crocuta).

Spotted hyenas are highly social carnivores with competitive feeding habits. It was hypothesized that social feeding might be capable of reversing an established flavor aversion. The dominant hyena of each of 4 captive social groups was given a novel food mixed with LiCl on Day 1; aversion to this food was demonstrated on Day 2. On Day 3, the dominant hyena and 3 or 4 members of her group were offered the food simultaneously. Three of the 4 dominant hyenas ate substantial quantities of the food during this group feeding, and all 4 hyenas ate the following day when offered the food alone. In contrast, when averted to a different novel food, the hyenas refused that food on 3 consecutive days. In this species social factors, such as those operating during group feeding, are sufficiently powerful to attenuate, immediately and dramatically, a strong LiCl-induced aversion.

Animals↗

PubMed1998

Perception of scent over-marks by golden hamsters (Mesocricetus auratus): novel mechanisms for determining which individual's mark is on top.

Hamsters preferentially remember or value the top scent of a scent over-mark. What cues do they use to do this? Using habituation-discrimination techniques, we exposed male golden hamsters (Mesocricetus auratus) on 3 to 4 trials to genital over-marks from 2 females and then tested subjects for their familiarity with these 2 scents compared with that of a novel female's secretion. Preferential memory for 1 of the 2 individuals' scents did not occur if the 2 marks did not overlap or did not overlap but differed in age, but it did occur if a region of overlap existed or 1 mark apparently occluded another (but did not overlap it). Thus, hamsters use regions of overlap and the spatial configuration of scents to evaluate over-marks. These phenomena constitute evidence for previously unsuspected perceptual abilities, including olfactory scene analysis, which is analogous to visual and auditory scene analysis.

Analysis of Variance↗