Structural equation models for interchangeable dyads: being the same makes a difference

Structural equation modeling (SEM) offers a flexible method for studying the patterns of interdependence in partners' behavior, which lie at the heart of interactions and relationships. Although SEM has been applied to the study of distinguishable dyads, in which partners are distinguishable by type, such as male and female, it has rarely been applied to the study of interchangeable dyads, such as male-male or female-female pairs. The authors integrate a wide range of dyadic interdependence models--including actor-partner interdependence models, mutual-influence models, and common-fate or dyadic personality models--into an SEM framework for use with interchangeable dyads. The authors also address the use of latent variables at both the dyadic and individual levels, whereby substantive relationships in these models can be corrected for errors of measurement. Furthermore, the authors discuss the conceptual underpinnings of dyadic models and give examples of their application.     

Automatic processing in spider phobia: implicit fear associations over the course of treatment

This study evaluates the cognitive model of anxiety by investigating treatment-related changes in automatic associations to evaluate schematic processing. Spider-phobic participants (n = 31) and healthy controls (n = 30) completed fear-based Implicit Association Tests (IATs), which are reaction-time measures that tap implicit associations without requiring conscious introspection. The specific tasks involved classifying pictures of snakes and spiders along with semantic categorizations (good vs.bad, afraid vs. unafraid, danger vs. safety, and disgusting vs. appealing). Phobic individuals were assessed before and after group-based exposure treatment and 2 months later, controls were assessed at matched time points. Results supported clinical applications for implicit fear associations, including prediction of phobic avoidance, and treatment sensitivity of the fear- and disgust-specific automatic associations.     

Book Review

Abstract

Over the past 20 years, the clinical evaluation of family systems has been spearheaded by Robert Beavers and his colleagues at the Southwest Family Institute in Dallas, Texas. Out of their research and clinical work has evolved the Beavers System Model for Family Assessment (BSM). The BSM is a collection of three instruments the first of which was the Beavers-Timberlawn Family Evaluation Scale (1972) featured in the widely popular book, No Single Thread (Lewis et al, 1976). The Centripetal/Centrifugal Family Style Scale shortly followed (1974), and more recently (1983) the Self-Report Family Instrument was added to the BSM. Although the focus of the following critique is on the Beavers-Timberlawn Family Evaluation Scale (BT), the measure is designed to be used in conjunction with the other scales to more fully identify the health/competence of a particular family.     

Science in Mental Health Training and Practice,With Special Reference to School Psychology

The first words in the inaugural version of the American Psychological Association Ethical Standards of Psychologists (1953) declared, “Psychology is a science” (p. v). Professional ethics for all of the mental health disciplines support science (and objectivity) for knowledge and practice. Using school psychology as an example, consideration is given to the presence of science and research in the scientist-practitioner, professional practitioner, and psychoeducational training and practice models. Although none of the three models truly ignores a commitment to science, the potential Achilles heel comes from the individual practitioner who fails to rely on science in planning, implementing, and evaluating interventions. Similarly, idiosyncratic preferences within training programs could lead to a diminution of science in the curriculum.     

Externality as a function of obesity in children: pervasive style or eating-specific attribute?

The developmental sources of the link between stylistic externality and food-related externality found in the obese by Schacter and others were explored by testing whether the externality phenomena that have been found to differentiate obese and normal adults are also discriminators of obese and normal children. The results suggest that obese children as young as 7-12 years of age show an external responsiveness to salient food cues but not yet a generally external perceptual style. The implications of these findings for the development of obese externality are examined.