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.     

Beyond verisimilitude: A linguistically invariant basis for scientific progress

This paper proposes a solution to David Miller's Minnesotan-Arizonan demonstration of the language dependence of truthlikeness (Miller 1974), along with Miller's first-order demonstration of the same (Miller 1978). It is assumed, with Peter Urbach, that the implication of these demonstrations is that the very notion of truthlikeness is intrinsically language dependent and thus non-objective. As such, truthlikeness cannot supply a basis for an objective account of scientific progress. I argue that, while Miller is correct in arguing that the number of true atomic sentences of a false theory is language dependent, the number of known sentences (under certain straightforward assumptions) is conserved by translation; degree of knowledge, unlike truthlikeness, is thus a linguistically invariant notion. It is concluded that the objectivity of scientific progress must be grounded on the fact (noted in Cohen 1980) that knowledge, not mere truth, is the aim of science.For criticism and comments I am indebted to Noretta Koertge, David Miller, and an anonymous Synthese referee.     

The effects of COVID-19 stressors and family life on anxiety and depression one-year into the COVID-19 pandemic

The purpose of this study was to examine the effects of Coronavirus (COVID-19)-related stressors and family health on adult anxiety and depressive symptoms 1 year into the pandemic. The sample consisted of 442 adults living in the United States who were recruited via Amazon Mechanical Turk. Data were analyzed using multiple logistic regression. Results indicated that compared to a sample 1 month into the pandemic, participants in the current sample reported worse family health and increases in both positive and negative perceptions of the pandemic on family life and routines. COVID-19 stressors and perceived negative effects of the pandemic on family life increased the odds for moderate-to-severe depression and anxiety while having more family health resources decreased the odds for depression and anxiety symptoms. Participants reported lower odds for worse depression and anxiety since the beginning of the pandemic when they reported more positive family meaning due to the pandemic. The results suggest a need to consider the impact of family life on mental health in pandemics and other disasters.     

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...     

A conversation analysis of therapist repeats in open dialogue network meetings

Writings on Open Dialogue approaches to working with families experiencing mental distress emphasize the importance of the therapist repeating the family's words back to them verbatim. Repeats are theorized to display the therapist's listening and to encourage elaboration without imposing the therapist's own interpretations or conclusions on the family. These recommendations have not been subjected to rigorous interactional investigation. In this study, we used conversation analysis to analyze 160 examples of therapists repeating the prior talk of the family from 14 h of video-recorded Open Dialogue sessions. We found that these repeats had similar functions to those previously described in conversation analysis research such as initiating repair, marking receipt, and requesting elaboration as well as examples of therapist repeats occurring in overlap with the talk of the client. Open Dialogue writings thus present an oversimplified account of how repeats are utilized in clinical Open Dialogue sessions. Consistent with dialogical writings, repeats can elicit elaboration with limited input from the therapist, however repeats reflect selectivity and function to direct and guide the conversation to some extent. So, while therapist authority can be mitigated by repeating clients' words, when a therapist chooses to employ a repeat actively shapes the direction of the interaction.