CHANGES IN STUDENTS' EXPLANATIONS FOR GENDER DIFFERENCES AFTER TAKING A PSYCHOLOGY OF WOMEN CLASS: MORE CONSTRUCTIONIST AND LESS ESSENTIALIST

We explored how students' endorsements of essential (biological and personality) and constructed (socialization and contextual) explanations for gender differences changed from the start to the end of Psychology of Women (POW) classes along with their feminist attitudes. Results from surveys of 120 POW students from three universities indicated that these students began class with more feminist awareness, immersion, and constructionist thinking than 228 general students, and that constructionist thinking was associated with perceptions that gender differences can be eliminated. Students' essentialism declined across their POW class, whereas their constructionist thinking increased and their feminist attitudes strengthened. End-of-semester feminist identification was associated with stronger endorsement of contextual explanations for gender differences above and beyond initial identification. We discuss implications for researchers, instructors, and activists.     

Visual layout modulates Fitts’s law: The importance of first and last positions

When a target in the last position of a structured visual array is aimed for, movement times (MTs) are shorter than predicted by Fitts’s law (Adam, Mol, Pratt, & Fischer, 2006). That study, however, confounded relative target position with absolute target location. To determine whether target position does, indeed, produce changes in the speed-accuracy trade-off function, the present experiment manipulated relative target position (e.g., first or last) independently of absolute target location (e.g., nearest or farthest). This was accomplished by presenting connected placeholders at three adjacent locations from a set of five possible locations (i.e., the middle location could be the first, middle, or last placeholder position in an array). The results of a speeded manual-pointing task showed that relative position is important for Fitts’s law; when absolute location was held constant, shorter MTs were found for last-position than for middle-position targets. In addition, a similar effect was found for first-position targets. These results suggest that Fitts’s law holds within, but not between, relative target positions in visible structured arrays.     

Do irrelevant depth cues affect the comprehension of bar graphs?

Eight participants decided whether two‐ or three‐dimensional bars embedded within two‐ or three‐dimensional frames were semantically consistent with written inequalities of the form ‘A>B’. Inequalities were presented either before (Experiment 1) or after the graphs (Experiment 2). In Experiment 1, irrelevant depth cues were associated with slower decision times and there was no processing cost associated with an inconsistency between the dimensionalities of bars and frames. Memory encoding and retrieval times in Experiment 2 were affected by both graph complexity and consistency. Neither a depth consistency heuristic nor the maximum ink–data ratio principle can account for these results. More appropriate guidance for graph design will come from elaborating the working memory component of current cognitive models of graph processing. Copyright © 2000 John Wiley & Sons, Ltd.     

Inferring accuracy for judges and items: Choice of unit of analysis reverses the conclusions

This study explores the relationship between the precision and the accuracy of forecasts using either judge or item as the unit of analysis. Participants in five experiments answered general-knowledge questions by indicating intervals that were likely to include the correct answer. Results indicate that the precision of an interval estimate is not a straightforward cue to the likelihood that such an interval includes the truth (hit rate). Whereas judges who state more precise estimates (i.e. who provide narrower interval estimates) have lower hit rates, questions for which the average judgment is more precise have higher hit rates. Thus, the relation between precision and accuracy depends on whether one ‘slices’ the data by judge or by question. We offer an explanation for this seemingly paradoxical effect and implement it as a computer simulation to demonstrate its validity. © 1997 John Wiley & Sons, Ltd.     

Precision and accuracy of judgmental estimation

Whereas probabilistic calibration has been a central normative concept of accuracy in previous research on interval estimates, we suggest here that normative approaches for the evaluation of judgmental estimates should consider the communicative interaction between the individuals who produce the judgments and those who receive or use them for making decisions. We analyze precision and error in judgment and consider the role of the accuracy–informativeness trade-off (Yaniv and Foster, 1995) in the communication of estimates. The results shed light on puzzling findings reported earlier in the literature concerning the calibration of subjective confidence intervals. © 1997 John Wiley & Sons, Ltd.     

Who Cares about Justice? The Moderating Effect of Values on the Link between Organisational Justice and Work Behaviour

On s’est demandé, dans cette recherche, si les valeurs modérent la relation entre les perceptions de la justice procédurale et les variables d’intervention au travail. Selon le modèle relationnel d’autorité (Tyler et Lind 1992), l’effet de la justice procédurale sur l’engagement dans l’organisation, sur les aspects facilitants et dynamiques du comportement extra‐rôle dépendraient des orientations axiologiques des individus. Les résultats montrent que les employés de structures britanniques et germaniques qui font montre d’ouverture au changement (Schwartz 1992) sont plus influencés dans leur engagement dans leur entreprise et le comportement extra‐rôle par l’absence de justice perçue que ceux qui n’endossent pas les valeurs d’ouverture au changement. Les effets du comportement extra‐rôle étaient plus forts parmi les sujets britanniques. Les valeurs de conservation atténuent la relation entre la justice et l’engagement dans l’organisation uniquement chez les Allemands. Ces résultats permettent de mieux comprendre la façon dont la mesure des valeurs peut expliquer des différences culturelles dans les effets de la perception de la justice. This study examined whether values moderate the relationship between procedural justice perceptions and work outcome variables. Based on the relational model of authorities ( Tyler & Lind, 1992 ), it was predicted that the effect of procedural justice on organisational commitment and on self‐reported compliant and proactive aspects of extra‐role behaviour would depend on the value orientations of individuals. It was found that employees from British and German organisations who endorsed Schwartz's (1992 ) openness to change values were more influenced in their organisational commitment and compliant extra‐role behaviour by the absence of perceived justice than those who do not endorse openness values. The effects found for extra‐role behaviour were stronger among UK respondents. Conservation values moderated the relation between justice and organisational commitment only among Germans. These moderation findings extend our understanding of the way that value measures can explain cultural differences in the effects of perceived organisational justice.     

Psychotraumatologie und Psychoanalyse

Ohne Zusammenfassung ¹ Forum Psychoanal (2005) 21:143–155.     

The unresponsive bystander: are bystanders more responsive in dangerous emergencies?

Previous research in bystander intervention found that the presence of other bystanders reduces helping behaviour in an emergency (bystander effect). This research was mainly conducted in the context of non‐dangerous, non‐violent emergencies. We hypothesize that the classic bystander effect does not occur in more dangerous situations because: a) they are faster and more clearly recognized as emergency situations; and b) higher costs for refusing help increase the accepted costs for helping. Following this line of reasoning, the present research tests whether the bystander effect is affected by the degree of the emergency's potential danger. Results supported our expectations: In situations with low potential danger, more help was given in the solitary condition than in the bystander condition. However, in situations with high potential danger, participants confronted with an emergency alone or in the presence of another bystander were similarly likely to help the victim. Copyright © 2005 John Wiley & Sons, Ltd.     

Why mood affects help giving,but not moral courage: Comparing two types of prosocial behaviour

A long tradition in the help giving literature assumes that mood states determine the level of prosocial behaviour shown by individuals. Most research in this area has been conducted in the context of low cost prosocial behaviour, whereas research has been neglected in which participants were confronted with situations involving potential severe and dangerous negative consequences (i.e., high cost situations) with the help‐giver risking his moral integrity and social disapproval (i.e., moral courage). To address this gap in the literature, the present studies investigate differential effects of positive and negative compared with neutral mood states on help giving versus moral courage. Study 1 shows that in situations requiring low cost helping, participants were more likely to help in positive and negative moods than those in a neutral mood, whereas in situations requiring moral courage (high cost), participants were comparably likely to help in each of the three mood conditions. In Study 2, we find that salience of moral norms mediates the interaction between type of prosocial behaviour and mood. Finally, Study 3 investigates whether the apparent discrepancy between help giving and moral courage as established by the differential impact of mood states can be determined still differently. It reveals that justice sensibility, civil disobedience, resistance to group pressure, moral mandates, and anger lead to moral courage, but not to help giving. Differences between these two types of prosocial behaviour are discussed. Copyright © 2009 John Wiley & Sons, Ltd.     

In Defence of Backyard Chickens

Suppose that animals have rights. If so, may you go down to your local farm store, buy some chicks, raise them in your backyard, and eat their eggs? You wouldn't think so. But we argue, to the contrary, that you may. Just as there are circumstances in which it's permissible to liberate a slave, even if that means paying into a corrupt system, so there are circumstances in which it's permissible to liberate chickens by buying them. Moreover, we contend that restrictions on freedom of movement can be appropriate for chickens, but not humans, because of the obvious differences between the interests of healthy, adult humans versus those of chickens who have been bred for human use. We also argue that egg consumption is permissible based on the plausible assumption that no one's rights are violated in their consumption, and so while there may sometimes be morally preferable uses for eggs, you do nothing unjust in eating them. If we're right, then the rights view doesn't imply that veganism is obligatory; rather, it implies that the constraints on how we source animal products, though highly demanding, are not so demanding that they can't be met.