A Propensity Score Adjustment for Multiple Group Structural Equation Modeling

In the behavioral and social sciences, quasi-experimental and observational studies are used due to the difficulty achieving a random assignment. However, the estimation of differences between groups in observational studies frequently suffers from bias due to differences in the distributions of covariates. To estimate average treatment effects when the treatment variable is binary, Rosenbaum and Rubin (1983a) proposed adjustment methods for pretreatment variables using the propensity score. However, these studies were interested only in estimating the average causal effect and/or marginal means. In the behavioral and social sciences, a general estimation method is required to estimate parameters in multiple group structural equation modeling where the differences of covariates are adjusted. We show that a Horvitz–Thompson-type estimator, propensity score weighted M estimator (PWME) is consistent, even when we use estimated propensity scores, and the asymptotic variance of the PWME is shown to be less than that with true propensity scores. Furthermore, we show that the asymptotic distribution of the propensity score weighted statistic under a null hypothesis is a weighted sum of independent χ² ₁ variables. We show the method can compare latent variable means with covariates adjusted using propensity scores, which was not feasible by previous methods. We also apply the proposed method for correlated longitudinal binary responses with informative dropout using data from the Longitudinal Study of Aging (LSOA). The results of a simulation study indicate that the proposed estimation method is more robust than the maximum likelihood (ML) estimation method, in that PWME does not require the knowledge of the relationships among dependent variables and covariates.     

Structural behavioural analysis as a basis for discriminating between genuine and simulated rape allegations

This paper explores the potential utility of structural behavioural analysis as a basis for discriminating between genuine and simulated accounts of rape. Structural analysis examines the coherence of the combination of behaviours in the account based against the co‐occurrence of behaviours in genuine accounts. Three analyses compared 142 genuine rape with 30 simulated statements in terms of the base rates of behaviours reported within the statements, and in terms of the behavioural coherence of each statement to an established behavioural structure. Results suggest that genuine statements tend to report a larger total number of behaviours than simulated statements; that pseudo‐intimate behaviours are significantly more often reported in genuine statements while some violent behaviours are more frequently reported in simulated statements; and that simulated statements are less behaviourally coherent than genuine statements. We concede the many limitations of the study but argue that results provide tentative evidence that false claimants, not fully appreciating the phenomenological experience of rape, overemphasise the significance of violent and demeaning behaviour whilst underplaying the significance of pseudo‐intimate behaviour. Copyright © 2006 John Wiley & Sons, Ltd.     

Recent Debates Over Structural Realism

Summary  In recent years Structural Realism has been revived as a compromise candidate to resolve the long-standing question of scientific realism. Recent debate over structural realism originates with Worrall’s (1989) paper “Structural Realism: The best of Both Worlds”. However, critics such as Psillos contend that structural realism incorporates an untenable distinction between structure and nature, and is therefore unworkable. In this paper I consider three versions of structural realism that purport to avoid such criticism. The first is Chakravartty’s “semirealism” which proceeds by trying to show that structural realism and entity realism entail one another. I demonstrate that this position will not work, but follow Chakravartty’s contention that structural realism need not imply that scientific knowledge can only be of mathematical structure. I advance from this conclusion to sketch a version of structural realism that is consistent with recent deflationary approaches to the scientific realism question. Finally, I consider a third approach to structural realism Ladyman’s “metaphysical structural realism” which tries to avoid the difficulties of earlier versions by taking structure to be ontologically primary. I show that the deflationary approach to structural realism undermines the rationale behind Ladyman’s approach.     

Initial development and validity evidence for the processes of change in Psychological Skills Training Questionnaire

ObjectivesThe purpose of this study was to create and provide validity evidence for the Processes of Change in Psychological Skills Training Questionnaire (PCPSTQ).DesignThe current study used a cross-sectional research design.MethodsFive hundred fifty nine NCAA Division I, professional, and Olympic level athletes participated in the current study. To create the PCPSTQ, an initial pool of 114 items was generated by the research team. After a content validity process, 65 items were retained for analysis. Exploratory structural equation modeling was used as an analytic strategy to identify the most appropriate factor structure for the PCPSTQ. Decisions about the most appropriate model were made using multiple fit indices. To examine the construct validity of the PCPSTQ, a series of one-way ANOVAs were conducted to examine differences in processes of change use across stage of change.ResultsIn the current study, validity evidence provided support for a 7-factor process of change measure (χ² = 325.84, p < .001; Comparative Fit Index = .971; Tucker Lewis Index = .945; Root Mean Square Error of Approximation = .037; Standard Root Mean Square Residual = .020). Results also supported the construct validity of the scale as a significant difference in process of change use across stage of change was reported for all seven processes.ConclusionsResults of the current study support the factor structure and construct validity of the PCPSTQ. It appears that the processes of behavior change reported across multiple behavior change domains might also be viable for sport psychology professionals.     

Collective‐efficacy as a mediator of the relationship of leaders' personality traits and team performance: A cross‐level analysis

The relationship between a leader's personality and his team's performance has been established in organisational research, but the underlying process and mechanism responsible for this effect have not been fully explored. Both the traditional multiple linear regression and the multilevel structural equation model approaches were used in this study to test a proposed mediating model of subordinates' perception of collective efficacy between leader personality and team performance. The results show that the team leader's extraversion and conscientiousness personality traits were related positively to both the team‐average (individual) perception of collective efficacy and team performance, and the collective efficacy mediated the relationship of the leader's personality traits and team performance. This study also discusses how Chinese cultural elements play a role in such a mediating model.     

Intergenerational Religious Mobility in Contemporary China

This study illustrates intergenerational religious mobility with the case of Chinese society. Using the quasi‐symmetric log‐linear model to separate structure mobility from exchange mobility, we examine the variation in religious identities between the reform era generation and their parents. Structure mobility results suggest that the encompassing social reform over the past decades in China has encouraged the structural growth of Islam and Christianity across generations, but traditional Chinese religions bear remarkable intergenerational disadvantages. Moreover, religious nones are growing across generations, at least relative to traditional Chinese religions. Exchange mobility findings indicate that individuals whose parents follow traditional Chinese religions are very likely to “convert” to Christianity. However, children of religious nones do not necessarily remain irreligious, possibly undermining the structural advantages of religious nones in the future. Finally, a comparison between cohort and period effects drives us to conclude that the major social force underpinning the revival of Chinese religion in the reform era is generational replacement instead of an increasingly religious transition of “old” generations.     

The Contribution of Attachment and Social Media Practices to Relationship Development

This study tested the hypothesized directional relationship that college students (N = 717; 10.1% response rate to an online survey) who score higher on measures of insecure attachment and social media practices would have lower relationship development quality scores. Structural equation modeling results indicated that participants with greater insecure attachment had lower relationship development quality (large effect size), whereas individuals with greater social media practices had higher relationship development quality scores. Implications for counselors are presented.