Depression in an evolutionary context

Sadness and low levels of depression are adaptive since they lead the individual to try and make up a loss. By contrast, severe or clinical depression is not adaptive, but can be thought of as sadness having become malignant.     

Knowledge in an evolutionary context

The theory of evolution justifies neither optimistic nor pessimistic inferences regarding human knowledge. Darwinian accounts of knowledge would show the adaptive virtues of beliefs, but this is independent logically and practically of their truth. But equally, considerations derived from evolution should not support a downgrading of the manifest image in favour of the scientific image. As embodied beings our first and most certain interactions with the world are and must remain those of everyday life.     

The attitudes toward rape victims scale: Reliability and validity in a chinese context

Two studies were conducted to assess the cross-cultural applicability of Ward's Attitudes toward Rape Victims Scale (ARVS). In the first study, 202 Chinese college students took the ARVS, the Attitudes toward Women Scale, and the Traditionality-Modernity Factor Scale. Reliability and convergent validity were established for ARVS. In the second study, construct validity of the ARVS was further examined, using the known-group method. The scores of four professional groups were compared. Consistent with previous studies, women showed significantly more favorable attitudes toward the rape victims than men. The findings generally suggest that the ARVS is promising in further cross-cultural research and application.     

The costs and benefits of cross-task priming

Two lines of research on cross-task priming yield opposite results. Research on repetition priming observed positive priming, whereas research on the role of priming in task-switching observed negative effects. We combined the two types of design. In the transfer phase of our paradigm, subjects performed task B either as a pure block (BBB) or as a switch block (ABAB). We presented items which were either unprimed or primed by prior presentation during a preceding priming phase performed on task A. Amongst others, the priming effect is determined by two factors: First, the more operation time the system needs during the probe event, the higher the likelihood to obtain priming. Protracting operation time by reducing stimulus quality favors positive priming, whereas providing more operation time by making subjects switch between tasks favors negative priming. Second, the strength of the memory trace of the prime event determines whether that trace can possibly yield negative priming, in that only strong traces can be retrieved together with the associated task/response.     

The costs and benefits of memory conformity

We examined the influence of external recommendations on memory attributions. In two experiments, participants were led to believe that they were viewing the responses of two prior students to the same memoranda they were currently judging. However, they were not informed of the reliability of these fictive sources of cues or provided with performance feedback as testing proceeded. Experiment 1 demonstrated improvement in the presence of reliable source cues (75% valid), as compared to uncued recognition, whereas performance was unaltered in the presence of random cues provided by an unreliable source (50% valid). Critically, participants did not ignore the unreliable source, but instead appeared to restrict cue use from both sources to low-confidence trials on which internal evidence was highly unreliable. Experiment 2 demonstrated that participants continued to treat an unreliable source as potentially informative even when it was predominantly incorrect (25% valid), highlighting severe limitations in the ability to adequately discount unreliable or deceptive sources of memory cues. Thus, under anonymous source conditions, observers appear to use a low-confidence outsourcing strategy, wherein they restrict reliance on external cues to situations of low confidence.     

Feminine charm: an experimental analysis of its costs and benefits in negotiations

The authors examined feminine charm, an impression management technique available to women that combines friendliness with flirtation. They asked whether feminine charm resolves the impression management dilemma facing women who simultaneously pursue task (i.e., economic) and social goals in negotiations. They compared women's social and economic consequences after using feminine charm versus a neutral interaction style. They hypothesized that feminine charm would create positive impressions of its users, thus partially mitigating the social penalties women negotiators often incur. They also expected that the degree to which females were perceived as flirtatious (signaling a concern for self), rather than merely friendly (signaling a concern for other), would predict better economic deals for females. Hypotheses were supported across a correlational study and three experiments. Feminine charm has costs and benefits spanning economic and social measures. Theoretical and practical implications are discussed.     

The costs and benefits of testing text materials

Tests have been shown to improve the later recall of tested information, a result known as the testing effect. Tests, however, can also impair the later recall of related information, an effect known as retrieval-induced forgetting. Although retrieval-induced forgetting has been demonstrated using a wide variety of materials, recent work suggests that learning information in the context of a coherent text passage may afford protection from retrieval-induced forgetting. In four experiments we explored the conditions under which retrieval-induced forgetting does and does not occur with such materials. We found that two factors—the coherence of the to-be-learned material and the competitiveness of retrieval practice—are important in determining whether retrieval-induced forgetting does or does not occur. Furthermore, even if retrieval-induced forgetting does occur, having the opportunity to restudy the forgotten information can prevent that forgetting from persisting. Taken together, these findings provide greater understanding of the costs and benefits of testing text materials, with possible implications for the optimisation of testing as a tool for learning in educational contexts.     

The costs and benefits of testing text materials

Tests have been shown to improve the later recall of tested information, a result known as the testing effect. Tests, however, can also impair the later recall of related information, an effect known as retrieval-induced forgetting. Although retrieval-induced forgetting has been demonstrated using a wide variety of materials, recent work suggests that learning information in the context of a coherent text passage may afford protection from retrieval-induced forgetting. In four experiments we explored the conditions under which retrieval-induced forgetting does and does not occur with such materials. We found that two factors-the coherence of the to-be-learned material and the competitiveness of retrieval practice-are important in determining whether retrieval-induced forgetting does or does not occur. Furthermore, even if retrieval-induced forgetting does occur, having the opportunity to restudy the forgotten information can prevent that forgetting from persisting. Taken together, these findings provide greater understanding of the costs and benefits of testing text materials, with possible implications for the optimisation of testing as a tool for learning in educational contexts.     

The evolution of human mating: trade-offs and strategic pluralism

During human evolutionary history, there were "trade-offs" between expending time and energy on child-rearing and mating, so both men and women evolved conditional mating strategies guided by cues signaling the circumstances. Many short-term matings might be successful for some men; others might try to find and keep a single mate, investing their effort in rearing her offspring. Recent evidence suggests that men with features signaling genetic benefits to offspring should be preferred by women as short-term mates, but there are trade-offs between a mate's genetic fitness and his willingness to help in child-rearing. It is these circumstances and the cues that signal them that underlie the variation in short- and long-term mating strategies between and within the sexes.     

Comprehensive soldier fitness: building resilience in a challenging institutional context

The Comprehensive Soldier Fitness (CSF) program is designed to increase psychological strength and positive performance and to reduce the incidence of maladaptive responses of the entire U.S. Army. Based on the principles of positive psychology, CSF is a historically unique approach to behavioral health in a large (1.1 million members) organization. There are four program elements: (a) the assessment of emotional, social, family, and spiritual fitness; (b) individualized learning modules to improve fitness in these domains; (c) formal resilience training; and (d) training of Army master resilience trainers (MRTs) to instill better thinking skills and resilience in their subordinates. In contrast to traditional approaches, CSF is proactive; rather than waiting to see who has a negative outcome following stress, it provides ways of improving resilience for all members of the Army. CSF aims to move the full spectrum of responses to trauma and adversity-ranging from stress-related disorders to ordinary resilience-toward personal growth. This program may provide a model for implementing similar interventions in other very large institutions.     

The benefits and costs of comparisons in a novel object categorization task: Interactions with development

We investigated how children use within- or between-category comparisons to generalize novel names for novel objects on the basis of a nonsalient dimension (texture) rather than a salient one (shape). Previous studies have not experimentally addressed the costs associated with comparisons. We conjectured that increasing the number of stimuli to be compared (and thus, converging evidence in favor of the target texture-based generalization), might not necessarily be beneficial, especially in young children (3- to 4-year-olds vs. 5- to 6-year-olds). Our results showed that more evidence in favor of texture (i.e., more within-category exemplars sharing the same texture) did not linearly increase texture-based choices in the same way for younger and older children. They also revealed that between-category comparisons gave rise to texture-based generalizations in both age groups. Overall, our results show that even though within- and between-category comparisons contribute to generalizations based on texture, they also generate cognitive constraints that interact with age.     

Social ties: subgroup differences in costs and benefits

Social ties can be stressful as well as supportive. Are these opposing effects linked, and can they help explain subgroup differences in the efficacy of social support? These questions were applied to data on social support in response to stressful life events. The subjects were 314 women randomly chosen from the registration list of a neighborhood health center in Boston. The data were from the initial interviews of a larger study. The findings include the following: The mobilization of social support was associated with better psychological well-being for women with greater personal resources, but not for those with lower levels of personal resources. Women with lower levels of personal resources were more distressed by life events in the lives of their significant others, especially as the number of these events increased. The subgroup effects of interpersonal support and stress on psychological well-being were independent, separate effects. In sum, women with greater material and psychological resources derived more beneficial support and suffered less stress from their social ties.     

The costs of optimism and the benefits of pessimism

Research suggests that optimism feels good. However, does it always feel good? We suggest that the benefits (and costs) of optimism and pessimism depend on their timing. A study of exam score estimates revealed that, after controlling for actual exam performance, optimistic expectations are unrelated to how people feel immediately before feedback, in contrast to the common wisdom that optimism "feels good." Furthermore, optimism has costs after feedback-participants who predicted higher scores before feedback felt worse after learning their scores. Finally, people seem to be aware of the potential costs of optimism-participants who predicted higher scores before feedback also anticipated experiencing greater disappointment should they perform poorly. These findings suggest that people may proactively manage their expectations to avoid the costs of optimism.     

The dark triad: Facilitating a short‐term mating strategy in men

This survey (N = 224) found that characteristics collectively known as the Dark Triad (i.e. narcissism, psychopathy and Machiavellianism) were correlated with various dimensions of short‐term mating but not long‐term mating. The link between the Dark Triad and short‐term mating was stronger for men than for women. The Dark Triad partially mediated the sex difference in short‐term mating behaviour. Findings are consistent with a view that the Dark Triad facilitates an exploitative, short‐term mating strategy in men. Possible implications, including that Dark Triad traits represent a bundle of individual differences that promote a reproductively adaptive strategy are discussed. Findings are discussed in the broad context of how an evolutionary approach to personality psychology can enhance our understanding of individual differences. Copyright © 2008 John Wiley & Sons, Ltd.     

The costs and benefits of providing feedback during learning

It seems uncontroversial that providing feedback after a test, in the form of the correct answer, enhances learning. In real-world educational situations, however, the time available for learning is often constrained— and feedback takes time. We report an experiment in which total time for learning was fixed, thereby creating a trade-off between spending time receiving feedback and spending time on other learning activities. Our results suggest that providing feedback is not universally beneficial. Indeed, under some circumstances, taking time to provide feedback can have a negative net effect on learning. We also found that learners appear to have some insight about the costs of feedback; when they were allowed to control feedback, they often skipped unnecessary feedback in favor of additional retrieval attempts, and they benefited from doing so. These results underscore the importance of considering the costs and benefits of interventions designed to enhance learning.     

Loyal but ignored: The benefits and costs of constructive communication behavior

The consequences of exit, voice, loyalty, and neglect behavior were examined using retrospective questionnaires (Study 1) and 2 social interaction diary studies (Study 2). Exit and neglect were generally associated with more negative partner responses and reduced feelings of value and closeness, and were reported to be more harmful to the relationship. Voice was associated with more positive partner responses and greater value and intimacy, and was perceived to be most beneficial to the relationship. In contrast, loyalty was perceived to have the same detrimental consequences as destructive behaviors (Study 1) and did not predict more positive outcomes within daily interactions (Study 2). These results indicate that, despite good intentions, loyal intimates are often left feeling ignored and unappreciated.     

Choice of conflict-handling strategy: a matter of context

In this study, a follow-up to Callanan and Perri (2006), the authors investigated whether individuals are inclined to choose a conflict-handling approach based on their primary orientation as given by a standardized instrument, or whether they choose a style different from their primary orientation. The authors also assessed whether individuals are inclined to choose the appropriate or "optimal" strategy as based on contextual factors embodied in the conflict situation. Participants in the study were 184 graduate and undergraduate students from two universities located in the United States. Results show that when individuals are presented with conflict scenarios based on real-life events, they can and do choose conflict-handling strategies that are different from their presumed dominant strategy. Further, results show that individuals are generally able to read contextual factors and social cues to select the most "situationally appropriate" conflict-handling response. This study presents implications for future research and discusses issues related to the management of interpersonal and intragroup conflict.     

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.     

The costs and benefits of tonal centers for chord processing

Harmonic priming studies have shown that a musical context, with its established tonal center, influences target chord processing. This study investigated costs and benefits of priming tonal centers for target processing by adding a baseline condition (sequences without a specific tonal center). Results confirmed harmonic priming, with faster processing for related than for unrelated and less related targets (tonic chord, out-of-key chord, subdominant chord). Comparing targets in baseline contexts with targets in sequences with well-established tonal centers revealed a benefit of processing for related targets but a cost of processing for unrelated and less related targets. Findings are discussed in terns of tonal knowledge activation and suggest that an activated tonal center gives rise to strong expectations for the tonic.