Reliability and validity of gain scores considered graphically

The ordinary gain score, g, is defined as g = x2-x1, where x1 is the pretest score and x2 is the posttest score. The present study extends and refines previous research on the reliability and validity of gain scores. Using particular values as stated in the tables and graphs, the pre- and posttest reliabilities, pre- and posttest validities, ratios of pretest to posttest standard deviations, and correlations between the pretest and posttest were varied systematically to examine the effects of these parameter configurations on gain scores' reliability and validity. Results plotted graphically provide insight via visual interpretation not easily inferred using only values from a table. One interesting finding was that the reliability of a gain score can be at a maximum when the validity is at a minimum. Another is that a high correlation between pre- and posttest was beneficial to the validity of the gain score but detrimental to its reliability. By identifying the situations in which gain scores can be reliable and valid, findings inform researchers when gain scores should or should not be used.     

The Atrocity Paradigm and the Concept of Forgiveness

In this article 1 discuss Claudia Card's treatment of war rape in relation to her discussion of the victim's moral power of forgiveness. I argue that her analysis of the victim's power to withhold forgiveness overlooks the paradoxical structure of witnessing, which implies that there is an ungraspable dimension of atrocity. In relation to this ungraspable element, the proposal that victims of atrocity have the power to either offer or withhold forgiveness may have little relevance.     

Sensitivity of passive approach during preference and reinforcer assessments for children with severe and profound intellectual disabilities and minimal movement

We evaluated the use of passive approach to assess preferences of two children, with severe and profound intellectual disabilities. Both children had physical challenges and exhibited minimal physical movement. We also compared the relative reinforcing effects of the identified high and low preference stimuli for a switch pressing response, and for a more passive looking response. High and low preference stimuli were identified for both children. Moreover, the high preference stimulus maintained higher rates of responding than the low preference stimulus for both children for the passive looking response, but not for switch pressing. The study extended the use of passive approach to assess preferences and identified the choice of target response as a potential limiting factor during reinforcer tests for these children. Copyright © 2006 John Wiley & Sons, Ltd.     

On the Very Idea of Continental (or for that Matter Anglo–American) Philosophy

For most of the past century, philosophers on the Continent and those in the United States and Britain have taken themselves to be working in very different, even mutually exclusive, philosophical traditions. Although that may have been true until recently, it is no longer so. This piece surveys ten different proposed distinctions that have been offered between the two traditions, and it shows that none of them works, as there are major thinkers on both sides of each proposed distinction that do not neatly fit the proposal. The upshot of this is that it no longer makes sense to uphold the idea of two traditions, and that it is time we all dropped the mutual suspicion and denigration that have characterized relationships between us for the past hundred years.     

The impact of parental attachment and feelings of isolation on adolescent fear of crime at school

While scores of researchers have examined the antecedents of fear of criminal victimization among adults, research examining the correlates of such fear among adolescents, particularly in the school setting, is limited. Using data from 2136 public school students from a rural Southern state, we examine the association between fear of criminal victimization and race, gender, age, attachment to parents, feelings of isolation, and victimization. We determine that adolescents who have been victimized by crime are far more fearful than their counterparts who have not. Additionally, we determine that youth who have lower levels of attachment to parents and higher levels of isolation/alienation are also more fearful of criminal victimization than their counterparts. Interestingly, the impact of isolation on fear of criminal victimization is stronger for whites than nonwhites while the impact of parental attachment is stronger for males than females. Implications for policy and future research are also discussed.     

Imaginary relish and exquisite torture: the elaborated intrusion theory of desire

The authors argue that human desire involves conscious cognition that has strong affective connotation and is potentially involved in the determination of appetitive behavior rather than being epiphenomenal to it. Intrusive thoughts about appetitive targets are triggered automatically by external or physiological cues and by cognitive associates. When intrusions elicit significant pleasure or relief, cognitive elaboration usually ensues. Elaboration competes with concurrent cognitive tasks through retrieval of target-related information and its retention in working memory. Sensory images are especially important products of intrusion and elaboration because they simulate the sensory and emotional qualities of target acquisition. Desire images are momentarily rewarding but amplify awareness of somatic and emotional deficits. Effects of desires on behavior are moderated by competing incentives, target availability, and skills. The theory provides a coherent account of existing data and suggests new directions for research and treatment.     

Perceptual asymmetry for chimeric stimuli in children with early unilateral brain damage

The present study used a chimeric stimuli task to assess the magnitude of the left-hemispace bias in children with congenital unilateral brain damage (n = 46) as compared to typically developing matched controls (n = 46). As would be expected, controls exhibited a significant left-hemispace bias. In the presence of left hemisphere (LH) damage, the left-hemispace preference was found to be present, but attenuated, whereas right hemisphere (RH) damage resulted in a less lateralized process. Examination of lesion severity revealed that large lesions in the RH were associated with a reversal of the typical left-hemispace bias, while small lesions resulted in a left bias approximating that of controls. In contrast, the left-hemispace preference in children with LH damage was similar across lesion size. We conclude that damage to either hemisphere early in brain development may alter hemispheric preference for processing of nonverbal stimuli, and that at least in the case of RH damage, alteration of the normal perceptual asymmetry may depend on the interaction between lesion side and severity.