Testing for selectivity in the dependence of random variables on external factors

Random variables A and B, whose joint distribution depends on factors (x,y), are selectively influenced by x and y, respectively, if A and B can be represented as functions of, respectively, (x,S_A,C) and (y,S_B,C), where S_A,S_B,C are stochastically independent and do not depend on (x,y). Selective influence implies selective dependence of marginal distributions on the respective factors: thus no parameter of A may depend on y. But parameters characterizing stochastic interdependence of A and B, such as their mixed moments, are generally functions of both x and y. We derive two simple necessary conditions for selective dependence of (A,B) on (x,y), which can be used to conduct a potential infinity of selectiveness tests. One condition is that, for any factor values x,x^′ and y,y^′,

s_xy≤s_xy^′+s_x^′y^′+s_x^′y,     

Hobbes, Rousseau, and The “Gift” in Interpersonal Relationships

This paper compares and contrasts the philosophical positions of Hobbes and Rousseau from the standpoint of interpersonal communication theory. Although both men argued from the state of nature, they differed fundamentally on the nature of humankind and the purpose of relationships. These differences should be of concern for interpersonal scholars insofar as they reflect differing sets of axioms from which to begin theorizing. The second part of the paper establishes a link between Hobbes' philosophy and the social exchange tradition: The Hobbes-social exchange tradition begins with the assumption that individuals form relationships to maximize rewards and minimize costs; a Rousseauist position must begin with the assumption that individuals form relationships in pursuit of some common goal. Thus, relational continuity and quality are not a function of cost-benefit ratios, but of how well partners work together toward their common good.     

Does covenant marriage predict latent trajectory groups of newlywed couples?

Covenant marriage is a legally distinct marriage license available in Arizona, Louisiana, and Arkansas in the United States. This study revisited one of the largest longitudinal dyadic studies on covenant versus standard newlywed couples. Using this dataset of 677 different-sex couples, we explored whether being in a covenant marriage could predict how marital satisfaction developed over the first five marital years. We applied the Growth Mixture Modeling (GMM) method to identify groups that differed in their initial marital satisfaction and trajectory. The results revealed three different trajectory groups—one group showing high and stable marital satisfaction, which we named High Stable, and two groups showing declines in marital satisfaction, one being medium and the other one being low in satisfaction at the beginning of the marriage, and we named them Medium Declining and Low Declining respectively. Spouses with lower initial marital satisfaction experienced a faster decline and suffered the highest divorce rate. Actor-Partner Interdependence Model (APIM) analysis revealed that one's group membership was predicted by their partner's membership, suggesting a mutual influence on marital development. Being in a covenant marriage was able to predict husbands' membership as covenant husbands were found to be more likely in the high stable group.     

What Looks Like Sexism and Why? The Effect of Comment Type and Perpetrator Type on Women's Perceptions of Sexism

ABSTRACT. Sexist comments are not perceived equally in the eyes of women. We extend previous research by examining the degree to which multiple types of potentially sexist comments made by multiple types of men are perceived as sexist. Further, we examine the degree to which three possible mediators—prototypicality, perceived intent, and interdependence—explained these effects. Female undergraduate students (N = 248) were randomly assigned to read a scenario in which a hostile sexist, benevolent sexist, or objectifying comment was made by one of three types of men: a stranger, their boss, or their boyfriend. Results demonstrate that hostile sexism was perceived as more sexist than benevolent sexism or objectification. Comments made by boyfriends were also rated as less sexist than those made by bosses or strangers. Furthermore, perceptions of prototypicality of the comment or perpetrator and perceived intent to harm mediated the effect of study manipulations on perceptions of sexism.     

Personality and work-home interaction among dual-earner couples in South Africa: Testing an actor-partner interdependence model

This study aimed to investigate the effect of personality on work-home interaction crossover effects among dual-earner couples in South Africa. The participants were dual-earner couples (n = 264; 132 couples) with young children. They completed measures on work-home interaction and personality. Multilevel modelling was used to analyse predictions for six personality variables and four work-home interaction outcome variables. Additionally, we examined interaction effects between husbands’ and wives’ actor effects, as well as between their partner effects. Results suggest only wives’ Extraversion, Emotional Stability, and Openness positively influenced husbands’ experience of work-home interaction. Work-home personality crossover actor effects were more pronounced for wives. Partner effects were stronger for husbands in that an increase in Extraversion in wives will increase husbands’ experience of positive home-work interaction. A gendered effect appears to influence work-home interaction among South African working couples; this knowledge is important for interventions to establish balanced work and home lives.     

Commentary Research on gene–environment interdependence: Honing the tools and examining the angles

The insightful overview by Sir Michael Rutter (this issue) on gene–environment interdependence comes about 10 years after the breakthrough Science publications on gene–environment interactions (G×E) involving the MAOA and 5-HTT genes by Caspi et al. (2002 Caspi, A., McClay, J., Moffitt, T. E., Mill, J., Martin, J.Craig, I. W. 2002. Role of genotype in the cycle of violence in maltreated children. Science, 297: 851–854. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar], 2003 Caspi, A., Sugden, K., Moffitt, T. E., Taylor, A., Craig, I. W.Harrington, H. 2003. Influence of life stress on depression: Moderation by a polymorphism in the 5-HTT gene. Science, 301: 386–389. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Since then, a field of research has burgeoned that has produced replications as well as intriguing new evidence of gene–environment interdependence. At the same time, however, the field has witnessed a growing scepticism about the relevance of studying gene–environment interactions and has seen replication failures (see Duncan & Keller, 2011 Duncan, L. E. and Keller, M. C. 2011. A critical review of the first 10 years of candidate gene-by-environment interaction research in psychiatry. American Journal of Psychiatry, 168: 1041–1049. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Risch et al., 2009 Risch, N., Herell, R., Lehner, T., Liang, K.-Y., Eaves, L.Hoh, J. 2009. Interaction between the serotonin transporter gene (5-HTTLPR), stressful life events, and risk of depression: A meta-analysis. Journal of the American Medical Association, 301: 2462–2471. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Against this backdrop, we comment and elaborate on several of the key issues raised by Rutter, and suggest some directions for future research on G×E. Specifically, we discuss (1) replication issues; (2) the crucial role of experiments in understanding gene–environment interdependence; (3) current unknowns with regard to differential susceptibility; and (4) clinical and practical implications of G×E research.     

Culture,social class,and independence–interdependence: The case of Chinese adolescents

Social class demarcates sociocultural environments differing in the relative abundance and scarcity of resources, which in turn differentially afford independent and interdependent psychological processes. The relationships between social class and psychological processes are well documented in Western populations but less so elsewhere. Examining such a relationship is particularly important in China, with its unique historical and sociocultural issues surrounding social class. This research examined the relationship between social class and independence–interdependence among Chinese adolescents (N = 1184). Findings were consistent across a diverse array of psychological processes implicated by independence–interdependence: Participants with well‐educated parents experienced more socially disengaging emotions and a higher level of self‐esteem, and were more inclined toward dispositional attribution and focused attention, compared to participants with less well‐educated parents. These findings highlight the cross‐cultural commonality in the relationship between social class and independence–interdependence.     

Additive factors and stages of mental processes in task networks

To perform a task a subject executes mental processes. An experimental manipulation, such as a change in stimulus intensity, is said to selectively influence a process if it changes the duration of that process leaving other process durations unchanged. For random process durations a definition of a factor selectively influencing a process by increments is given in terms of stochastic dominance (also called “the usual stochastic order”). A technique for analyzing reaction times, Sternberg’s Additive Factor Method, assumes all the processes are in series. When all processes are in series, each process is called a stage. With the Additive Factor Method, if two experimental factors selectively influence two different stages by increments, the factors will have additive effects on reaction time. An assumption of the Additive Factor Method is that if two experimental factors interact, then they influence the same stage. We consider sets of processes in which some pairs of processes are sequential and some are concurrent (i.e., the processes are partially ordered). We propose a natural definition of a stage for such sets of processes. For partially ordered processes, with our definition of a stage, if two experimental factors selectively influence two different processes by increments, each within a different stage, then the factors have additive effects. If each process selectively influenced by increments is in the same stage, then an interaction is possible, although not inevitable.     

An investment model of sociosexuality,relationship satisfaction,and commitment: Evidence from dating,engaged, and newlywed couples

Using an investment model (Rusbult, 1980, 1983) of sociosexual attitudes (SOI-A), we examined SOI-A’s association with relationship outcomes using actor–partner interdependence models (APIMs) of over 400 dating, engaged, and newlywed couples. Men’s SOI-A negatively related to both men’s (actor effect) and women’s (partner effect) relationship satisfaction. This actor effect persisted after controlling for men’s and women’s relationship commitment, and was stronger (more negative) among dating couples (vs. engaged or newlywed couples) and couples with shorter relationship durations. Moderated-mediation APIMs suggested that (a) both actor-effect satisfaction–commitment associations were more positive in couples dating for 6 months and (b) men’s relationship satisfaction mediated the link between men’s SOI-A and men’s relationship commitment, but only in couples dating for 6 months.     

Preference‐expectation reversal in the ratings of independent and interdependent individuals: A USA–Japan comparison

We predicted and supported the prediction that a ‘preference‐expectation reversal’ would occur among Japanese but not among Americans. American and Japanese participants evaluated ideal‐typical independent and interdependent persons on the negative–positive dimension, and estimated how others would evaluate these persons. They also indicated their preference for acting like each of the target persons; that is, which of the two target persons they would prefer to act like. Both the American and Japanese participants wanted to act like the typical independent person rather than the typical interdependent person. However, the Japanese participants expected that others would evaluate the interdependent person more positively than the independent person. This preference‐expectation reversal was not observed among the American participants. Further analysis demonstrated that the American participants' personal evaluations of the two targets were consistent with their preferences. The Japanese participants' personal evaluation represented a compromise between their preferences and the expected responses of others. These results suggest that the culturally shared belief in Japan that interdependent persons would receive more positive evaluations than independent persons created an incentive for them to behave interdependently despite their preferences.