Performance of retarded adolescents and nonretarded children on one- and two-bit logical problems

Groups of adolescents of retarded and borderline intelligence, ranging in IQ from 44 to 80 and in mean MA (mental age) from 8 to 12 yr, and groups of nonretarded children ranging in mean MA from 6 to 12 yr, were given logical problem solving tasks. In the nonretarded groups, on a one-bit problem only the kindergarten children (mean MA = 6 yr) failed to perform above chance, and were not tested further. On a two-bit problem, only the first graders (mean MA = 7 yr) failed to perform above chance.Conversely, in the low IQ groups, only the borderline group (mean MA = 12 yr) performed reliably above chance on the one-bit problem, and none performed above chance on the two-bit problem. There is a profound deficiency in low IQ individuals on certain tasks requiring logic and foresight, and MA markedly over-estimates their performance relative to the performance of nonretarded individuals.     

The Relationship of Psychological Resources and Social Support to Job Procurement Self-Efficacy in the Disadvantaged1

This study investigated social-psychological characteristics of disadvantaged persons in employment training. Participants (N=115) furnished information about their psychological resources (internality and learned resourcefulness), social support, and job procurement self-efficacy when they entered employment training programs. Self-efficacy was assessed again approximately 3 weeks after termination from training. It was expected that psychological resources and social support would be associated and that they would predict job procurement self-efficacy at follow-up. Psychological resources and social support were significantly related. Social support, and particularly reassurance of worth, were significant predictors of participants’ efficacy expectations at follow-up. Implications for employment preparation are discussed, and directions for future research are suggested.     

Perceptions of Overprotection in III Adults1

Several studies have suggested that chronically ill adults who receive overprotective care are more depressed and less motivated in rehabilitation therapy. However, for this area of research to proceed, a standard definition and measurement of perceptions of overprotection are needed. In the present study, long and short forms of a scale (the OPSA) to assess perceptions of being overprotected in chronically ill adults were developed. The scale's psychometric properties were tested with a sample of 161 community-dwelling older adults. It was found to have good internal reliability, to correlate highly with an established retrospective measure of overprotection in adults, and to be distinct from ratings of quantity and quality of social support. As expected, overprotection was associated with poorer adjustment: Respondents who felt overprotected were more depressed.     

A latent class approach to fitting the weighted Euclidean model,clascal

A weighted Euclidean distance model for analyzing three-way proximity data is proposed that incorporates a latent class approach. In this latent class weighted Euclidean model, the contribution to the distance function between two stimuli is per dimension weighted identically by all subjects in the same latent class. This model removes the rotational invariance of the classical multidimensional scaling model retaining psychologically meaningful dimensions, and drastically reduces the number of parameters in the traditional INDSCAL model. The probability density function for the data of a subject is posited to be a finite mixture of spherical multivariate normal densities. The maximum likelihood function is optimized by means of an EM algorithm; a modified Fisher scoring method is used to update the parameters in the M-step. A model selection strategy is proposed and illustrated on both real and artificial data.The second author is supported as Bevoegdverklaard Navorser of the Belgian Nationaal Fonds voor Wetenschappelijk Onderzoek.     

A thurstonian pairwise choice model with univariate and multivariate spline transformations

A probabilistic choice model is developed for paired comparisons data about psychophysical stimuli. The model is based on Thurstone's Law of Comparative Judgment Case V and assumes that each stimulus is measured on a small number of physical variables. The utility of a stimulus is related to its values on the physical variables either by means of an additive univariate spline model or by means of multivariate spline model. In the additive univariate spline model, a separate univariate spline transformation is estimated for each physical dimension and the utility of a stimulus is assumed to be an additive combination of these transformed values. In the multivariate spline model, the utility of a stimulus is assumed to be a general multivariate spline function in the physical variables. The use of B splines for estimating the transformation functions is discussed and it is shown how B splines can be generalized to the multivariate case by using as basis functions tensor products of the univariate basis functions. A maximum likelihood estimation procedure for the Thurstone Case V model with spline transformation is described and applied for illustrative purposes to various artificial and real data sets. Finally, the model is extended using a latent class approach to the case where there are unreplicated paired comparisons data from a relatively large number of subjects drawn from a heterogeneous population. An EM algorithm for estimating the parameters in this extended model is outlined and illustrated on some real data.The first author is supported as Bevoegdverklaard Navorser of the Belgian Nationaal Fonds voor Wetenschappelijk Onderzoek. The authors are indebted to Ulf Böckenholt and Yoshio Takane for useful comments on an earlier draft of this paper.     

The degree of similarity of differentiation of self between partners in married and dating couples: Preliminary evidence

Bowen's differentiation of self construct is examined through a test in two studies of the hypothesis that people select partners at similar levels of differentiation of self. One study used a sample of married couples and the other a sample of dating and engaged couples. The studies used different instruments for determining differentiation of self. Three data analysis procedures—correlations, t-tests, and the degree of similarity procedure—provided conflicting evidence for the similarity hypothesis. Results are discussed as they pertain to statistical analysis issues using related individuals and to Bowen family systems theory and the use of this theory in clinical practice.     

Instructive feedback: A comparison of simultaneous and alternating presentation of non-target stimuli

Instructive feedback involves presenting extra, non-target stimuli in the consequent events for children's responses. Two methods of presenting instructive feedback during direct instruction were compared. These methods involved presenting two extra stimuli on all trials, and presenting the two extra stimuli separately on alternating trials. Preschool students were taught coin combinations using a constant time delay procedure with instructive feedback stimuli added to both praise and correction statements. An adapted alternating treatments design was used to evaluate the two methods of presenting instructive feedback. The students were assessed to determine the extent to which instructive feedback stimuli were learned. The results indicate that students learned some of the instructive feedback stimuli and no consistent differences in the effectiveness of the two presentation methods were noted. Further, relationships between the two instructive feedback stimuli appeared to be established. Implications for instruction and future research are discussed.     

Evaluation of a peer support program for women with breast cancer—lessons for practitioners

The present study aimed to describe how a volunteer peer support service assists women with breast cancer, and provides guidelines for practitioners in the development and implementation of such programmes. A two‐phase evaluation of a breast cancer peer support program was undertaken to describe important attributes of the peer support intervention, the impact of the volunteer visit on women's self‐reports of anxiety, and key indicators of a successful volunteer visit. Phase 1 included focus groups with 57 women previously treated for breast cancer. Phase 2 included a survey of 245 women also treated previously for breast cancer and visited by a Breast Cancer Support Volunteer. The key aspect of the peer support process was the bond of common experience leading to a decrease in social isolation, an increase in optimism about the future and reassurance about personal reactions and femininity. It is recommended that peer support programmes should aim to time support visits to coincide with the time when patient support needs are highest, that volunteers need to be recruited from a range of backgrounds and matched to patients most similar to them in way of life, and that peer support services should be embedded in a broad network of community support services. Copyright © 1999 John Wiley & Sons, Ltd.     

The Impact of Multiple AIDS‐Related Bereavement in the Gay Male Population

During the last 15 years, society has been overwhelmed by the medical, social, and psychological impact of AIDS and HIV. One aspect of this issue is AIDS‐related loss, and the correlative epidemic of AIDS‐related bereavement. Individuals are considered particularly susceptible to such bereavement when loss is multiple, as is often the case in the gay male population. The research exploring the impact of AIDS‐related loss is reviewed, and counseling implications for working with individuals experiencing multiple losses are suggested.     

Attention and Communication Following TBI: Making the Connection through a Meta-Narrative Systematic Review

Neuropsychology Review - Background and aim: Communication difficulties are one of the hallmark characteristics of adults following traumatic brain injury (TBI), a difficulty that incorporates...