The effects of social motives on behavior in social dilemmas in two cultures

Subjects in Santa Barbara, California, and Groningen, The Netherlands, participated in a seven-person social dilemma game, presented in terms of a conservation of resources problem. Prior to their decision making in the social dilemma game, subject's social motive (altruistic, cooperative, individualistic, competitive) was assessed by means of two different classification procedures. On the basis of previous research findings American subjects were expected to display relatively more competitive social motives, and Dutch subjects relatively more cooperative ones. However, no indications of crosscultural differences were found neither with regard to the distribution of social motives nor with regard to the amount of resources taken for self in the social dilemma game. In both locations, competitive subjects took most resources for self, individualistic subjects took next most, cooperative subjects took less than individualists, and altruistic subjects took the least. In addition to predictive validity, indices of the convergent validity of two social motive assessment procedures were described.     

Open live supervision in family therapy

This article reviews changes in models of supervision, resulting from technological developments and reflecting a variety of theoretical approaches. The focus is on open live supervision, conducted in the presence of the family. The supervisor and a therapeutic team join the therapist and the family, creating a complex supra-system that opens up several options for therapeutic intervention. Sessions are videotaped, and therapists use recordings for additional supervision and independent study. Therapists may also show recordings to the family as part of the therapeutic process. The advantages and disadvantages of the model are considered, and examples of some of the therapeutic options are described.This model was developed in the course of the author's work teaching and supervising students at the Counseling Department of the School of Education at the Hebrew University of Jerusalem, and supervising a multi-disciplinary team including physicians, psychologists, and social workers engaged in family therapy at the Municipal Psychological Services for Schools in Jerusalem. A shorter version of this article appeared in Hebrew inSihot 5 1991. Appreciation is expressed to Batya Stein for translating the final version of this article from Hebrew. Reprint requests should be addressed to Katrit Ron, Neve Granot 3-B, Jerusalem 93706, Israel.     

PSO-GA based hybrid with Adam Optimization for ANN training with application in Medical Diagnosis

This paper introduces a novel PSO-GA based hybrid training algorithm with Adam Optimization and contrasts performance with the generic Gradient Descent based Backpropagation algorithm with Adam Optimization for training Artificial Neural Networks. We aim to overcome the shortcomings of the traditional algorithm, such as slower convergence rate and frequent convergence to local minima, by employing the characteristics of evolutionary algorithms. PSO has a property of faster convergence rate, which can be exploited to account for the slower pace of convergence of the traditional BP (which is due to low values of gradients). In contrast, the integration with GA complements the drawback of convergence to local minima as GA, possesses the capability of efficient global search. So by this integration of these algorithms, we propose our new hybrid algorithm for training ANNs. We compare both the algorithms for the application of medical diagnosis. Results display that the proposed hybrid training algorithm, significantly outperforms the traditional training algorithm, by enhancing the accuracies of the ANNs with an increase of 20% in the average testing accuracy and 0.7% increase in the best testing accuracy.     

Prenatal Representations of Coparenting Among Unmarried First‐Time African American Mothers

Results of semistructured interviews with 45 pregnant unmarried first‐time African American mothers indicated a wide range of expectancies concerning the coparenting relationship they would develop with others once their baby arrived. Most common coparenting systems projected by respondents involved maternal grandmothers and/or the babies' fathers, though other caregivers were explicitly anticipated in a smaller number of cases. Multiperson coparenting systems were the norm, and only 2 of 45 respondents anticipated that they would be entirely on their own with no coparental system whatsoever. Qualitative analyses of mothers' narratives about postbaby coparenting systems revealed five main constructions: having thought about and anticipating coparenting, positive in outlook; having thought about and anticipating coparenting, but with mild concerns (conflict, unreliability); having thought about coparenting and anticipating limited or no support; having thought about coparenting and anticipating significant conflict and nonsupport; and having not thought much about coparenting, being neither focused on nor worried about this issue. Illustrations of each of these types are provided, and directions for family science and practice are discussed.     

Optimism and Hope After Multiple Disasters: Relationships to Health-Related Quality of Life

Natural and technological disasters are devastating events for individuals and communities. The authors examined the role of optimism and hope in predicting health indicators in a sample of disaster survivors who were exposed to Hurricanes Katrina and Rita in 2005. Participants were noncoastal residents, current coastal residents, and current coastal fishers who were also economically impacted by the 2010 BP Deepwater Horizon oil spill. All participants completed measures of optimism, hope, and the SF-36 Health Survey, which provides summary scores for mental and physical health. Logistic regressions indicated that optimism and hope were independently and positively associated with better mental health (OR = 1.21; 95% CI: 1.10, 1.32 and OR = 1.11; 95% CI: 1.05, 1.17 respectively). Neither optimism nor hope were significantly associated with physical health when considered alone. However, optimism interacted with prior lifetime trauma, where optimism only significantly predicted physical health for those with higher previous trauma scores. These results provide new evidence of optimism and hope as protective factors that may positively impact mental health after multiple disasters.     

基于小样本容量的IRT参数估计方法比较研究

目前IRT参数估计方法的研究大多数都是基于大样本容量,而基于小样本容量的IRT参数估计方法的研究较少。通过对IRT参数估计方法的比较分析给出了基于小样本容量的IRT参数估计方法。实验数据表明,恰当的估计方法（如改进初值的BP神经网络）能大大提高小样本的参数估计精度。     

Is Committed Desire Intentional? A Qualitative Exploration of Sexual Desire and Differentiation of Self in Couples

The question of what heightens or diminishes sexual desire has long been a passionate theme across cultures in literature, arts, media, and medicine. Yet, little research has been conducted to determine what affects level of desire within couples. The degree of differentiation of self has been suggested as an important variable in shaping partners' level of desire. Through a qualitative analysis of dyadic couple interviews, this study provides an account of characteristics, processes, and trajectories of sexual desire and differentiation in 33 heterosexual couples of varying ages and relationship duration. Factors associated with high desire were change and autonomy, whereas conflict and children were reported to be desire‐diminishing factors. Innovation, sharing, autonomy, and effort emerged as desire‐promoting strategies, while fostering personal interests, investing in a positive connection, and enhancing personal integrity were identified as couples' strategies to promote and preserve differentiation of self. The results also shed light on couples' perceptions of whether and how sexual desire changes over the course of the relationship and challenge common cultural assumptions about desire in committed relationships—namely the myth that the only authentic expression of desire is that which occurs spontaneously and without intention and planning. Implications for couple therapy are discussed.     

Public attitudes to,and perceived impacts of 20mph (32 km/h) speed limits in Edinburgh: An exploratory study using the Speed Limits Perceptions Survey (SLiPS)

Between 2016 and 2018 a policy was implemented to increase the proportion of 20mph (32km/h) streets in Edinburgh, UK from approximately 50% to 80%, providing the opportunity to evaluate how behaviour and public perceptions change over time. This is important as negative public responses have been reported to limit the implementation of transport policies and may reduce the effectiveness of the policy. The Speed Limits Perception Survey (SLiPS) was developed to assess changes in public perceptions from baseline to 6 and 12 months post-implementation. We collected 3,485 individual responses to the survey, 64.6% (n = 2,253) of which included complete perceptions data. Using exploratory factor analysis, the following perception factors were identified: i) Detraction and resistance, ii) Support, iii) Rule following, iv) Child safety, and v) Walking safety. Following the 20mph implementation at 6–12 months: Support (ii) and Rule following (iii) had increased; Detraction and resistance (i) had decreased; and Child safety (iv) and Walking safety (v) had not changed significantly. These findings indicate that the public in Edinburgh became more positive towards the policy once it was implemented. However, more extensive policy or ongoing communication of the safety benefits of 20mph limits are needed to increase perceptions of safety that might lead to increased walking and cycling. Future research should aim to understand how those implementing speed limit interventions can positively influence public perceptions and how public perceptions about speed limits influence behaviour.