Modeling homophily over time with an actor-partner interdependence model

Selection and socialization have been implicated in friendship homophily, but the relative contributions of each are difficult to measure simultaneously because of the nonindependent nature of the data. To address this problem, the authors applied a multiple-groups longitudinal actor-partner interdependence model (D. A. Kashy & D. A. Kenny, 2000) for distinguishable dyads to 3 consecutive years of intoxication frequency data from a large community-based sample of Swedish youth. Participants, ranging from 12 to 18 years old (M = 14.35, SD = 1.56) at the start of the study, included 902 adolescents (426 girls and 476 boys) with at least one reciprocated friend during at least one time point and 212 adolescents (84 girls and 128 boys) without reciprocated friends at any time. Similarity estimates indicated strong effects for selection and socialization in friends' intoxication frequency. Over time, younger members of these dyads had less stable patterns of intoxication than older members, largely because younger partners changed their drinking behavior to resemble that of older partners.     

Deployment trauma and seeking treatment for PTSD in US soldiers

Many service members in need of mental health treatment do not seek such treatment. This study investigated the frequency of Army soldiers’ exposure to specific types of deployment stressors and whether different event-types were associated with willingness to seek and actual receipt of treatment. Male soldiers who were married (n = 600) completed online surveys that assessed posttraumatic stress disorder (PTSD), willingness to seek treatment for PTSD, actual receipt of PTSD treatment, and the frequency of exposure to 4 types of potentially traumatizing warzone experiences: committing a moral injury, observing a moral injury, threats to life, and traumatic loss. Soldiers who reported greater exposure to moral injury experiences (committed or observed) were less likely to be willing to seek treatment, regardless of PTSD symptom severity. Although exposure to moral injury did not differentiate actual treatment receipt, soldiers who endorsed loss were more likely to have received treatment, regardless of PTSD symptom severity. These results suggest that the types of trauma experienced during deployment may be a factor in postdeployment treatment-seeking attitudes and behaviors.     

Symptom reduction and termination: client change and therapist identified reasons for saying goodbye

Empirical efforts have focused on predicting whether or not clients prematurely terminate therapy, with nonattendance of last session equated to premature termination. However, this fails to explore the relationship between clients’ distress reduction and reasons for termination. With this study, we aimed to understand how clients’ distress change relates to premature termination and examine clients’ distress change in conjunction with therapists’ perceptions of termination reasons. We collected data from 797 clients who prematurely terminated or attended termination but completed therapy a minimum of three individual sessions provided by 38 therapists. Clients completed an assessment of psychological symptoms before each session. At the end of treatment, therapists identified the reasons they believed termination occurred for all clients in the sample. Results demonstrate that total sessions attended and missed predict premature termination, whereas distress change does not. Additionally, clients who were believed to accomplish goals do show greater change. However, therapists’ indicated that over half of clients did not reach goals at termination and they did not perceive nonattendance at last session to equate to drop out in all cases. Implications are discussed with respect to understanding why clients’ terminate, therapeutic goal conceptualization, and review of goals during termination in time-limited psychotherapy.     

The correlates of conflict: disagreement is not necessarily detrimental.

In this study, the authors examined whether concurrent associations between adolescent outcomes and disagreements with mothers, fathers, and best friends vary as a function of perceived relationship quality. Participants were 469 11- to 18-year-old youths from a culturally diverse community. Negative qualities of parent-adolescent and friend relationships were linked to adjustment problems (aggression, anxiety and depression, delinquency, and withdrawal). Positive qualities of parent-adolescent relationships were linked to school grades and adjustment problems. Nonlinear associations between conflict and adolescent outcomes were moderated by negative qualities of relationships such that increases in conflict from low to moderate levels were linked to (a) higher school grades for adolescents in better but not poorer quality relationships and (b) greater delinquency and withdrawal for adolescents in poorer but not better quality relationships.     

Learning of letter names follows similar principles across languages: Evidence from Hebrew

Letter names play an important role in early literacy. Previous studies of letter name learning have examined the Latin alphabet. The current study tested learners of Hebrew, comparing their patterns of performance and types of errors with those of English learners. We analyzed letter-naming data from 645 Israeli children who had not begun formal reading instruction: a younger group (mean age 5 years 2 months) and an older group (mean age 6 years 2 months). Children's errors often involved letters with similar shapes or letters adjacent to one another in the alphabet. Most Hebrew letter names are not very similar to one another phonologically, and there were fewer phonologically based confusions than in English. We found both general frequency effects and frequency effects that reflected the letters in individual children's names. On average, girls knew more letter names than did boys. The results suggest that letter name learning follows similar principles across languages.     

Robust dimensions of anxiety sensitivity: development and initial validation of the Anxiety Sensitivity Index-3

Accumulating evidence suggests that anxiety sensitivity (fear of arousal-related sensations) plays an important role in many clinical conditions, particularly anxiety disorders. Research has increasingly focused on how the basic dimensions of anxiety sensitivity are related to various forms of psychopathology. Such work has been hampered because the original measure--the Anxiety Sensitivity Index (ASI)--was not designed to be multidimensional. Subsequently developed multidimensional measures have unstable factor structures or measure only a subset of the most widely replicated factors. Therefore, the authors developed, via factor analysis of responses from U.S. and Canadian nonclinical participants (n=2,361), an 18-item measure, the ASI-3, which assesses the 3 factors best replicated in previous research: Physical, Cognitive, and Social Concerns. Factorial validity of the ASI-3 was supported by confirmatory factor analyses of 6 replication samples, including nonclinical samples from the United States and Canada, France, Mexico, the Netherlands, and Spain (n=4,494) and a clinical sample from the United States and Canada (n=390). The ASI-3 displayed generally good performance on other indices of reliability and validity, along with evidence of improved psychometric properties over the original ASI.     

Causal relations and feature similarity in children's inductive reasoning

Four experiments examined the development of property induction on the basis of causal relations. In the first 2 studies, 5-year-olds, 8-year-olds, and adults were presented with triads in which a target instance was equally similar to 2 inductive bases but shared a causal antecedent feature with 1 of them. All 3 age groups used causal relations as a basis for property induction, although the proportion of causal inferences increased with age. Subsequent experiments pitted causal relations against featural similarity in induction. It was found that adults and 8-year-olds, but not 5-year-olds, preferred shared causal relations over strong featural similarity as a basis for induction. The implications for models of inductive reasoning and development are discussed.     

Fluctuations in state implicit self-esteem in response to daily negative events

A repeated assessment study examined changes in state implicit self-esteem after negative events. Multilevel analyses revealed that trait explicit self-esteem and self-concept clarity moderated the within-person association between daily negative events and state implicit self-esteem. People with low trait explicit self-esteem or low self-concept clarity experienced decreases in state implicit self-esteem when they experienced negative life events. In contrast, for people with high trait explicit self-esteem or high self-concept clarity, state implicit self-esteem remained stable after negative events. In addition, changes in state implicit self-esteem remained significant after controlling for state explicit self-esteem and daily negative affect. This study is the first to study changes in implicit self-esteem in the context of daily life events.     

A pilot study of two-day cognitive-behavioral therapy for panic disorder

The present study investigated the short-term efficacy of brief, intensive cognitive-behavioral therapy (CBT) for panic disorder (PD). The treatment involved 9h of therapist contact over two consecutive days and was developed for the purpose of delivering CBT for PD to a largely rural patient population that must travel long distances to find a treatment provider. Ten patients who elected to participate in brief, intensive CBT instead of weekly CBT were recruited from routine clinical practice in a hospital-based anxiety disorders clinic. Patients were not excluded based on the presence of agoraphobia, diagnostic comorbidity, concurrent use of PRN benzodiazepine medications, or previous nonresponse to psychotherapy for PD. Assessments conducted at pre-treatment and 1-month follow-up revealed large, clinically significant reductions in PD symptoms, anxiety sensitivity, body vigilance, and anxiety and depressive symptoms. Most patients (60%) were panic-free after treatment and evidenced normative levels of symptomatology at follow-up. The present study suggests that brief, intensive treatment may be an effective means of delivering CBT for PD.