Modeling Heterogeneous Peer Assortment Effects Using Finite Mixture Exponential Random Graph Models

Psychometrika - This article develops a class of models called sender/receiver finite mixture exponential random graph models (SRFM-ERGMs). This class of models extends the existing exponential...     

The Costs of Silencing the Self and Divided Self in the Context of Physical Abuse,Racial/Ethnic Identity,and Medication Adherence in Women Living with HIV

Racial/ethnic minority status and physical abuse history are risk factors for higher mortality rates and lower adherence to antiretroviral therapy (ART) in women living with HIV (WLWH) in the United States. The current study tested the hypotheses that minority status and physical abuse history might lead women to silence the self (minimize and hide thoughts and feelings in order to avoid relational conflict, loss, and/or abuse) as measured by the Silencing the Self Scale (STSS), and that STSS might mediate and moderate relationships of physical abuse and racial/ethnic minority status with ART adherence. Divided Self (DS; acting in ways inconsistent with inner thoughts and feelings), an STSS subscale, was targeted for study along with the total STSS score. Participants were 513 women from the U.S. Women’s Interagency HIV Study (M_age?=?46; 387, 75%, Black; 66, 13%, Hispanic; 60, 12%, White). Multiple logistic regressions indicated that across all racial/ethnic groups, physical abuse history related to higher DS and lower adherence. DS significantly mediated relationships between abuse and adherence. Compared to White women, Black women demonstrated worse ART adherence, but had lower total STSS. Racial/ethnic minority women and women with a physical abuse history who had higher DS had lower adherence than other groups. Results indicate that being a racial/ethnic minority or having a history of physical abuse may increase vulnerability to the deleterious effects of DS on ART adherence, findings that can help inform interventions to decrease health disparities in WLWH.

     

Improving Predictive Accuracy with a Combination of Human Intuition and Mechanical Decision Aids

This study examines the intuitive combination of human judgment and mechanical prediction under varied information conditions. As expected, mechanical prediction outperformed human intuition when based on the same information, but a combined approach was best when judges had access to relevant information not captured by the model (information asymmetry). The model was useful for differentiating between the event outcomes (improved slope), while eliminating the bias caused by base-rate neglect. Human intuition was useful for incorporating relevant information outside the scope of the model, resulting in improved slope and reduced judgment scatter. The addition of irrelevant information was detrimental to judgment accuracy, causing an increase in bias and a reduction in slope. These results provide insight intohowandwhencombining mechanical prediction and human intuition is likely to result in improved accuracy.     

The relationship between sustained attention and cognitive performance in 17–24‐month old toddlers

The purpose of this study was to investigate individual differences in sustained attention and task performance with toddlers. Participants were 61 17–24‐month old toddlers. Indices of sustained attention (duration of attention and frequency of off‐task glances) were assessed during two 4 min problem solving tasks, and then related to problem solving and the mental scale of the Bayley scales of infant development‐II (BSID‐II). As expected, toddlers who attended to tasks for longer periods of time were more successful at problem solving, and had higher scores on the BSID‐II than toddlers who attended for shorter periods of time. In addition, older toddlers had longer attention spans, more frequent off‐task glances, and were more successful at problem solving than younger toddlers. Interestingly, toddlers with more frequent off‐task glances had longer attention spans, were more successful at problem solving, and had higher BSID‐II scores than peers with fewer off‐task glances. These findings suggest that although behavioural indices can be used to identify sustained attention, the relationship between behaviours thought to capture distractibility and attention is more complex than had been previously assumed. Results are discussed in the context of current theories of infant attention and cognitive performance. Copyright © 2000 John Wiley & Sons, Ltd.     

Attachment, Friendship, and Psychosocial Functioning in Early Adolescence

Fifth-graders' (N = 162; 93 girls) relationships with parents and friends were examined with respect to their main and interactive effects on psychosocial functioning. Participants reported on parental support, the quality of their best friendships, self-worth, and perceptions of social competence. Peers reported on aggression, shyness and withdrawal, and rejection and victimization. Mothers reported on psychological adjustment. Perceived parental support and friendship quality predicted higher global self-worth and social competence and less internalizing problems. Perceived parental support predicted fewer externalizing problems, and paternal (not maternal) support predicted lower rejection and victimization. Friendship quality predicted lower rejection and victimization for only girls. Having a supportive mother protected boys from the effects of low-quality friendships on their perceived social competence. High friendship quality buffered the effects of low maternal support on girls' internalizing difficulties.     

Reinforced Behavioral Variability in Humans

The Psychological Record - This study aimed to assess the role of reinforced behavioral variability in the learning of a 6-digit target sequence (211212) with 3 groups of human participants (n =...     

Cognitive-Behavioral Conjoint Therapy for PTSD: A Case Study of a Transgender Male Co-Parenting With Former Spouse and Perpetrator of Domestic Violence

Posttraumatic Stress Disorder (PTSD) symptoms have shown to contribute to intimate relationship discord (Taft et al., 2011). Cognitive-Behavioral Conjoint Therapy for PTSD (CBCT for PTSD; Monson & Fredman, 2012) is an evidence-based treatment for PTSD effective at significantly decreasing PTSD symptoms and increasing relationship satisfaction among dyads (Macdonald et al., 2016). To date, there has only been one case study examining the effectiveness of CBCT for PTSD with a sexual minority couple, (same-sex female couple) leaving uncertainty of the effectiveness of this treatment for other sexual minority couples. This case study examined a married couple’s response to treatment, in which the patient identified as a transgender male and his spouse identified as a cisgender female. The patient was diagnosed with PTSD per a Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) total score of 45 (of a maximum of 80). On the CAPS-5, the patient reported a first sexual encounter rape at age 15, from his first marriage with his ex-husband, whom he was dating at the time, as his index trauma. Of note, the patient and his wife currently co-parent two children with the patient’s ex-husband, who perpetrated daily sexual assaults for years during their marriage. Pre-treatment relationship happiness for the couple was “a little unhappy” on the Dyadic Adjustment Scale (DAS) Relationship Happiness Scale. Patient was also diagnosed with Dysthymia and responded well to continued Bupropion for depression. Following completion of the 15-session CBCT for PTSD protocol, the patient’s diagnosis of PTSD was determined to be in remission as evidenced by a post-treatment CAPS-5 total score of 7. At post-treatment the patient rated his relationship happiness as “happy” and his partner “very happy” on the DAS. The couple demonstrated clinically meaningful changes in areas of PTSD and relationship happiness. Functional improvements were also reported in the patient pursuing new employment and hobbies, improved co-parenting between the patient and his wife, improved sexual functioning, and decreased depression symptoms. Treatment gains were maintained at a 1-month and 3-month follow-up. These results demonstrate the effective use of CBCT for PTSD with a sexual minority couple that has continued co-parenting contact with a perpetrator of domestic violence.