Conditions for the clean slate effect after success or failure

The act of physically cleaning one’s hands may reduce the impact of past experiences, termed clean-slate effect. Cleaning was found to affect negative, neutral, and mildly positive states. We extend this influence to success, a self-serving state. We manipulated success vs. failure and measured changes in optimism (Experiment 1) or self-esteem (Experiment 2). Moreover, we examined boundary conditions for the clean-slate effect. Experiment 1 indicates that the influence of performance on optimism diminishes if participants knew (compared to did not know) they were cleaning their hands. Experiment 2 indicates that the influence of performance on self-esteem diminishes if participants cleaned themselves (compared to an object). These results suggest that the clean-slate effect requires both awareness and self-reference of the cleaning act. Thus, the clean-slate effect seems to depend on both conscious inferences and automatic processes. A meta-analysis across the experiments confirms a moderate-sized clean-slate effect.     

The improved name game: better use of expanding retrieval practice

Morris and Fritz (2000) demonstrated the effectiveness of the name game as a retrieval-practice based technique for learning the names of group members. We hypothesised that a reversed version of the name game would be even more effective. Performance was contrasted with a no-retrieval condition that mimicked the name game in every way except for the retrieval of the names, allowing an estimate of the specific contribution of retrieval practice. The benefit of a few refresher rounds of the game after 2 weeks was also examined. The reversed name game was superior to the original name game and the refresher rounds benefited all groups. The very considerable superiority of the name game over the no-retrieval condition demonstrated the magnitude of the benefit of expanding retrieval practice.     

Telomeres and the ethics of human cloning

In search of a potential problem with cloning, I investigate the phenomenon of telomere shortening which is caused by cell replication; clones created from somatic cells will have shortened telomeres and therefore reach a state of senescence more rapidly. While genetic intervention might fix this problem at some point in the future, I ask whether, absent technological advances, this biological phenomenon undermines the moral permissibility of cloning.     

The implications of unmitigated agency and unmitigated communion for domains of problem behavior

Agency and communion are broad dimensions of personality that reflect a focus on the self and a focus on others, respectively. In this article, we distinguish unmitigated agency, a focus on the self to the exclusion of others, flom agency, and we distinguish unmitigated communion, a focus on others to the exclusion of self, from communion. We argue that it is unmitigated agency and unmitigated communion that are linked to domains of problem behavior, in particular relationship difficulties and poor health behavior. Unmitigated agency and unmitigated communion are associated with a lack of support from others, a reluctance to ask others for help, and a range of poor health behaviors. The reasons for these links differ. The links to problem behavior for unmitigated communion individuals stem from their tendency to subjugate their own needs to the needs of others and their dependence on others for esteem. The links to problem behavior for unmitigated agency individuals stem from their unwillingness to attend to relationships and their negative view of others.     

Psychological testing on the Internet: new problems, old issues

The Internet has significantly changed the way people conduct business, communicate, and live. In this article, the authors' focus is on how the Internet influences the practice of psychology as it relates to testing and assessment. The report includes 5 broad sections: background and context, new problems yet old issues, issues for special populations, ethical and professional issues, and recommendations for the future. Special attention is paid to implications for people with disabling conditions and culturally and linguistically diverse persons. The authors conclude that ethical responsibilities of psychologists and current psychometric standards, particularly those regarding test reliability and validity, apply even though the way in which the tests are developed and used may be quite different.     

Moral Responsibility,Voluntary Control,and Intentional Action

Many theorists writing about moral responsibility accept that voluntary control is necessary for responsibility. Call such theorists volitionists. Recently, volitionism has been called into question by theorists I call nonvolitionists. Yet neither volitionists nor nonvolitionists have carefully articulated a clear volitionist thesis, nor have they sufficiently explained the concept of voluntary control that somehow seems connected to volitionism. I argue that attempts to explain the volitionist thesis, voluntary control, and their relation are more problematic than have previously been recognized. Instead, I recommend understanding volitionism in terms of intentional actions and omissions. This understanding has several benefits. It clarifies the debate and its parameters, it avoids the problematic notion of voluntary control while relying on the clearer notion of intentional action, and it highlights that the debate between volitionists and nonvolitionists essentially concerns the nature and scope of obligations. As a result, understanding volitionism in terms of intentional actions and omissions can help breathe new life into the volitionist debate.     

Hypocrisy and the Standing to Blame

Hypocrites are often thought to lack the standing to blame others for faults similar to their own. Although this claim is widely accepted, it is seldom argued for. We offer an argument for the claim that nonhypocrisy is a necessary condition on the standing to blame. We first offer a novel, dispositional account of hypocrisy. Our account captures the commonsense view that hypocrisy involves making an unjustified exception of oneself. This exception‐making involves a rejection of the impartiality of morality and thereby a rejection of the equality of persons, which we argue grounds the standing to blame others.     

Comparing and combining retrieval practice and the keyword mnemonic for foreign vocabulary learning

Experiment 1 compared the effectiveness of retrieval practice, the keyword mnemonic and rote rehearsal for learning foreign language vocabulary. Both mnemonic methods produced similar recall and were superior to rote rehearsal. In Experiment 2, participants learned German vocabulary using keywords, retrieval practice or their own method. Retrieval practice and keyword‐based recall were similar and superior to self‐directed study. In Experiment 3, participants studied using keywords, retrieval practice, a combination or an elaboration strategy. Criterion testing occurred immediately and after a week. For receptive learning, retrieval practice and keywords were equally beneficial but for productive learning, retrieval practice was more effective. Combining strategies produced mixed results with significant benefits only for receptive learning in the delayed test. Copyright © 2006 John Wiley & Sons, Ltd.     

Required sample size to detect the mediated effect

Mediation models are widely used, and there are many tests of the mediated effect. One of the most common questions that researchers have when planning mediation studies is, "How many subjects do I need to achieve adequate power when testing for mediation?" This article presents the necessary sample sizes for six of the most common and the most recommended tests of mediation for various combinations of parameters, to provide a guide for researchers when designing studies or applying for grants.