Do tests of malingering concur? Concordance among malingering measures

Malingering test accuracy is increasingly a major issue in psychology and law. Integrating results across measures might offset limitations of a single test, but the practical benefits of using several tests depend on the extent to which they misclassify the same individuals. Data from 66 evaluatees were used to assess the degree of overlap and consistency of classification among several commonly used malingering instruments. Although correlative data indicated that measures were highly redundant even across symptom domains, classification accuracy analyses revealed that findings based on conjunctions of these scales may not overlap to the degree that the correlations might suggest.     

Are the memories of older adults positively biased?

There is disagreement in the literature about whether a \"positivity effect\" in memory performance exists in older adults. To assess the generalizability of the effect, the authors examined memory for autobiographical, picture, and word information in a group of younger (17-29 years old) and older (60-84 years old) adults. For the autobiographical memory task, the authors asked participants to produce 4 positive, 4 negative, and 4 neutral recent autobiographical memories and to recall these a week later. For the picture and word tasks, participants studied photos or words of different valences (positive, negative, neutral) and later remembered them on a free-recall test. The authors found significant correlations in memory performance, across task material, for recall of both positive and neutral valence autobiographical events, pictures, and words. When the authors examined accurate memories, they failed to find consistent evidence, across the different types of material, of a positivity effect in either age group. However, the false memory findings offer more consistent support for a positivity effect in older adults. During recall of all 3 types of material, older participants recalled more false positive than false negative memories.     

Do cultural values predict individuals' moral attitudes? A cross‐cultural multilevel approach

This study examined whether cultural values predict individuals' moral attitudes. The main objective was to shed light on the moral universalism and relativism debate by showing that the answer depends on the moral issues studied. Using items from the Morally Debatable Behaviours Scale (MDBS) fielded in the World Value Survey (WVS), we found that moral issues can be differentiated cross‐culturally into attitudes towards (1) dishonest–illegal and (2) personal–sexual issues. Drawing upon evolutionary and cultural theories, we expected that the former moral domain is not related to cultural values, whereas the latter is influenced by cultural conceptions of the self (i.e. independent versus interdependent selves). We used multilevel modelling with Schwartz' cultural values as the independent variables and the two moral domains as assessed through the MDBS as dependent variables to test our hypothesis. After controlling for individual‐level differences in moral attitudes as well as the socio‐economic development of countries, our findings confirmed that attitudes towards dishonest–illegal issues were not related to cultural values whereas attitudes towards personal–sexual issues were predicted by the Autonomy–Embeddedness value dimension. We conclude that our study sheds not only light on the universalism and relativism debate, but also on the discriminant validity of cultural values. Copyright © 2011 John Wiley & Sons, Ltd.