Iterative inverse factor analysis—A rapid method for clustering persons

By interchanging persons and items, iterative inverse factor analysis provides a relatively inexpensive way of clustering persons according to their patterns of response to the items. In addition to permitting the clustering of large numbers of persons, the technique enables one to determine the bases for such clustering. The items of behavior used can be heterogeneous in content and form.     

Effects of averaging data during stimulus generalization

Rats were trained to press two keys consecutively for reinforcement. During stimulus one (slow clicker) a 6-sec time delay was required between the two responses. During stimulus eight (fast clicker) no time delay was required between the two responses. When tested with intermediate stimuli (intermediate click rates) the median time delays emitted by the animals were intermediate between their performances on the original training stimuli, resulting in typical generalization gradients. Closer examination of the data revealed that the median values were not representative of the behavior of the animals.     

Tool use in left brain damage and Alzheimer's disease: What about function and manipulation knowledge?

Tool use disorders are usually associated with difficulties in retrieving function and manipulation knowledge. Here, we investigate tool use (Real Tool Use, RTU), function (Functional Association, FA) and manipulation knowledge (Gesture Recognition, GR) in 17 left‐brain‐damaged (LBD) patients and 14 AD patients (Alzheimer disease). LBD group exhibited predicted deficit on RTU but not on FA and GR while AD patients showed deficits on GR and FA with preserved tool use skills. These findings question the role played by function and manipulation knowledge in actual tool use.     

The Future of Training and Credentialing in Group Psychotherapy

High-quality group psychotherapy training is seen as more important than ever in the current health care environment. The training opportunities available at present are assessed. It is argued that there is a body of knowledge about generic group psychotherapy that can and should be taught, and that there are appropriate people to teach it. Credentialing is discussed, and it is suggested that the assessment of actual work in clinical situations must be emphasized if such efforts are to be meaningful.     

Understanding Social Connectedness in College Women and Men

A sense of connectedness for men was hypothesized to be based on relationships that emphasize forms of social comparison, whereas a sense of connectedness for women was hypothesized to be based on relationships that emphasize forms of intimacy and physical proximity. The results from this study generally supported the hypotheses for both women and men. For women, relationships that emphasized reliable alliance and not guidance contributed to social connectedness. For men, relationships that emphasized reassurance of worth but not reliable alliance or opportunity for nurturance contributed to social connectedness. Differences in how women and men construct social connectedness are discussed in terms of counseling implications and future research.     

Predicting Cognitive and Social Consequences of Emotional Episodes: The Contribution of Emotional Intensity, the Five Factor Model, and Alexithymia

Emotional events are followed by recurrent thoughts (rumination) and talking about the event (social sharing of emotion). Factors that can account for variations in these consequences were examined (emotional intensity, the Five Factor Model, and two factors of alexithymia). In two samples, participants reported the most negative emotional event of recent months and in one sample also reported the most positive one. Results indicated that emotional intensity predicted social sharing and rumination, while neuroticism was positively related to intrusive thoughts about negative events and extraversion to rumination and social sharing about positive events. Difficulty describing feelings was negatively related to social sharing for negative events and reduced fantasy to rumination for positive events.