Sex segregation in friendships and normative contexts across the life span

Sex segregation (the separation of boys and girls into same-sex groups in their friendships and casual encounters; [Thorne, B., & Luria, Z. (1986). Sexuality and gender in children’s daily worlds. Social Problems, 33, 176–190]), has typically been viewed as a childhood phenomenon. In the present paper, we review research that suggests the phenomenon of sex segregation persists across the life span. We draw from a social-constructionist model to synthesize literature documenting sex segregation in friendships and aspects of individuals’ socio-cultural contexts in childhood, adolescence, and early and later adulthood. We consider developmental continuities in mechanisms that may be associated with sex segregation, including behavioral compatibility, communication styles, third-party resistance to other-sex relationships, and institutional barriers to other-sex relationships. We discuss how these factors may, through a reciprocal process, contribute to and result from sex segregation. Finally, we offer recommendations for future research.     

Depression and Anxiety: Integrating the Tripartite and Cognitive Content-Specificity Assessment Models

The cognitive content-specificity hypothesis proposes that depression and anxiety can be discriminated on the basis of unique cognitive profiles. Alternatively, the Tripartite model suggests that, although depression and anxiety share a general distress factor, anhedonia is a characteristic of depression with anxious arousal a characteristic of anxiety. Past research devoted to integrating these two models has been limited in a number of ways. To remedy these limitations, this study attempted to assess the complete Tripartite model and used a multidimensional cognitive assessment tool to handle the heterogeneity of anxious cognitive content. Results on data collected from 411 clients seeking services at a university counseling center suggested that a one-to-one mapping between Tripartite dimensions and cognitive content was possible. Further, variables from each model simultaneously explained unique variance in depression and anxiety ratings.     

Model structure adequacy analysis: selecting models on the basis of their ability to answer scientific questions

Models carry the meaning of science. This puts a tremendous burden on the process of model selection. In general practice, models are selected on the basis of their relative goodness of fit to data penalized by model complexity. However, this may not be the most effective approach for selecting models to answer a specific scientific question because model fit is sensitive to all aspects of a model, not just those relevant to the question. Model Structural Adequacy analysis is proposed as a means to select models based on their ability to answer specific scientific questions given the current understanding of the relevant aspects of the real world.     

The effects of golf expertise and presentation modality on memory for golf and everyday items

The present study assessed whether golf expertise, presentation modality, and domain relevance affected memory for golf-related and everyday items. Forty-eight experienced golfers and 48 non-golfers were compared in their memory for golf-related ("putt to the hole") and everyday ("turn on the lamp") items. To-be-remembered items were presented verbally, visually, or were enacted. Enacted information was recalled best, followed by visually presented information. Combined effects of modality and golf expertise on recall of golf items were demonstrated on immediate but not on delayed recall. The findings suggest that recall of domain-relevant information is optimal when one has relevant background knowledge, and under conditions of visual encoding. The data support research on facilitation of domain-relevant knowledge on recall [Weber, N., & Brewer, N. (2003). Expert memory: The interaction of stimulus structure, attention, and expertise. Applied Cognitive Psychology, 17, 295-308]. Interpersonal body representation may have played a role in recall processes among experts [Thomas, R., Press, C., & Haggard, P. (2006). Shared representations in body perception. Acta Psychologica, 121, 317-330].     

A follow-up study of girls with gender identity disorder

This study provided information on the natural histories of 25 girls with gender identity disorder (GID). Standardized assessment data in childhood (mean age, 8.88 years; range, 3-12 years) and at follow-up (mean age, 23.24 years; range, 15-36 years) were used to evaluate gender identity and sexual orientation. At the assessment in childhood, 60% of the girls met the Diagnostic and Statistical Manual of Mental Disorders criteria for GID, and 40% were subthreshold for the diagnosis. At follow-up, 3 participants (12%) were judged to have GID or gender dysphoria. Regarding sexual orientation, 8 participants (32%) were classified as bisexual/homosexual in fantasy, and 6 (24%) were classified as bisexual/homosexual in behavior. The remaining participants were classified as either heterosexual or asexual. The rates of GID persistence and bisexual/homosexual sexual orientation were substantially higher than base rates in the general female population derived from epidemiological or survey studies. There was some evidence of a "dosage" effect, with girls who were more cross-sex typed in their childhood behavior more likely to be gender dysphoric at follow-up and more likely to have been classified as bisexual/homosexual in behavior (but not in fantasy).     

The quality of children's home environment and attachment security in Indonesia

The authors examined the relation of the Home Observation for Measurement of the Environment (HOME) Inventory (B. M. Caldwell & R. H. Bradley, 1984) for 0- to 6-year-old Sundanese Indonesian children with the quality of the mother-child attachment relationship (n=44) and attachment-related behaviors during play interactions (n=37) and with characteristics of the Indonesian caregiving context (N=77). Results showed that infants and toddlers with secure attachment relationships lived in higher quality home environments than did children with insecure attachment relationships. In particular, children with insecure-resistant attachment relationships lived in more unsafe and less organized homes with less play material available. For preschoolers, a lower quality home environment predicted more negativity and noncompliance toward their mothers in a play setting outside the home. With regard to the caregiving context, the socioeconomic status of the family was strongly related to the quality of preschoolers' home environment. Scores on the HOME Inventory for Infants/Toddlers and the HOME Inventory for Early Childhood were related to other culture-specific contextual characteristics for 0- to 6-year old Indonesian children as well. As a whole, the HOME was a good indicator of the general quality of the Sundanese Indonesian home environment.     

Longitudinal associations between parents' hostility and siblings' externalizing behavior in the context of marital discord.

This study examined longitudinal associations between parents' hostility and siblings' externalizing behavior in the context of interparental discord. The sample included 116 families (mothers, fathers, 2 siblings) assessed in middle childhood, when siblings were, on average, 8 and 10 years old, and in adolescence, at average ages of 14 and 16 years. Parents reported on their hostility toward each child and on each child's externalizing problems. Raters observed interparental hostility, and parents rated their marital quality. Results indicated both within-family and between-families effects. Specifically, the child who received more parental hostility than his or her sibling showed greater increases in externalizing problems than his or her sibling; this association was moderated by marital discord. In addition, the child who exhibited more behavioral problems than his or her sibling received greater increases in hostile mothering than did his or her sibling. Between-families effects were evident, in that children's externalizing problems were associated with increases in mothers' hostility toward both children in the family. Results support transactional models of development and family systems theory.