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Social anxiety disorder (SAD) is often treated as a discrete diagnostic entity that represents a naturally occurring class, though empirical evidence largely supports a dimensional conceptualization of social fears. Further, the inclusion of a "performance only" specifier in the DSM-5 implies that individuals who experience intense social anxiety exclusively in performance situations are distinct from those with broader social fears. The purpose of the present research was to examine the latent structure of SAD and the DSM-5 "performance only" specifier in a large nonclinical sample (n = 2019). Three taxometric procedures (MAXCOV, MAMBAC, and L-Mode) were applied to indicators derived from two commonly used measures of social anxiety. Results yielded convergent evidence indicating that social anxiety exhibits a dimensional latent structure. Further, social performance anxiety demonstrates continuous relationships with milder social fears, suggesting that the "performance only" specifier may not represent a discrete entity. The implications of these findings for the assessment, diagnosis, classification, and treatment of social anxiety are discussed.

Extant stimulus-specific fear measures are limited to a small number of stimuli and contain significantly different content. This article describes 2 studies that develop a more flexible fear measure—the Circumscribed Fear Measure (CFM)—and examine its psychometric properties. In Study 1, participants (N = 771) completed an initial item pool while considering their most feared stimulus. Results of factor analyses were used to propose a 25-item, 5-factor measure that would span the domain of specific phobia reactions, applicable to different stimuli. In Study 2, participants (N = 959) completed the 25-item CFM, extant phobia measures, and a measure of disability. The CFM exhibited a 5-scale structure that had an equivalent structure across different stimuli. It showed good factorial validity, reliability, and generally good convergent and discriminant validity. Criterion validity was commensurate with that of extant phobia measures. The use of the measure as an index of an individual's greatest fear is also discussed. The CFM shows promise and could have substantial research and clinical utility., ((c) 2015 APA, all rights reserved).)

Cognitive models of social anxiety suggest that fear of negative evaluation (FNE) is the central cognitive dimension underlying the disorder. The Fear of Positive Evaluation Scale (FPES; Weeks, Heimberg, & Rodebaugh, 2008) was recently developed to assess an additional cognitive dimension purported to underlie social anxiety disorder (SAD), but its psychometric properties have yet to be examined in clinical populations. The present study, with 133 treatment-seeking patients, examined the applicability of the FPES with a clinical sample. Results indicated that the FPES was factorially distinct from a measure assessing FNE, and patients with SAD (n=51) had higher mean scores on the FPES than patients with other anxiety disorders (n=82). The FPES also showed adequate reliability (internal consistency), good convergent and discriminant validity, acceptable criterion-related validity in predicting social interaction anxiety symptoms, and appropriate sensitivity to treatment. The FPES appears to have good psychometric properties and is a promising new assessment tool for better understanding SAD.

We tested several hypotheses derived from the emotional processing theory of fear reduction by manipulating claustrophobic participants' focus of attention during in vivo exposure. Sixty participants displaying marked claustrophobic fear were randomized to one of four exposure conditions. Each participant received a total of 30-min of self-guided exposure 2-weeks after pretreatment testing. One group attended to threatening words and images during exposure (TW) and was compared to a control group that attended to neutral words and images (NW). A third group performed a demanding cognitive load task--a modified Seashore Rhythm Test during exposure (SR) and was compared to an exposure only (EO) control group. Contrary to prediction, the threat word manipulation was not associated with lower levels of fear following treatment. Consistent with prediction, the distraction manipulation resulted in less fear reduction at post-treatment. Treatment process analyses revealed that the negative effects of distraction on treatment outcome manifested early as slower between-trial habituation. These results and their relevance to emotional processing theory are discussed.