Category: Adult Anxiety

Symposium

Validating Factor Mixture Modeling-Derived Anxiety Sensitivity Cut Scores Through Response to Brief Interventions

Saturday, November 18
12:00 PM - 1:30 PM
Location: Indigo Ballroom E, Level 2, Indigo Level

Keywords: Anxiety Sensitivity | Randomized Controlled Trial
Presentation Type: Symposium

A well-deserved criticism of exploratory approaches to identify distinct classes of individuals in psychopathology research is the lack of replication/validation when classes are found. Distinct classes have been uncovered for anxiety sensitivity (AS), or the fear of anxious arousal. A series of studies provides support for three AS classes (low AS, moderate AS, and high AS), with well-defined cut-points for class membership. The current study was designed to validate these classes through examining differences in treatment response by class in two separate brief AS interventions. Because these interventions targeted individuals with elevated mood and anxiety, the low and moderate AS classes were collapsed into a single class in these studies. Study one compared cognitive anxiety sensitivity treatment (CAST) and a health-focused control (i.e., physical health and education treatment [PHET]) in a sample of 104 community participants (M age = 40.80, SD = 17.45; 72% with a primary mood/anxiety diagnosis). Linear regression was conducted, including pre-intervention AS scores, treatment condition, AS class, and the interaction between condition and class as predictors of post-intervention AS. Results revealed a marginally significant interaction (p = .06) such that for those in the low/moderate AS class CAST produced slight reductions in AS compared to the control condition (B = 3.72, p = .01) while for those in the high AS class CAST produced significantly larger reductions (B = 8.54, p < .001). Study two compared the same two conditions in a community sample of 74 participants (M age = 30.77, SD = 14.16; 75.7% female) with active suicidal ideation and a primary mood/anxiety disorder diagnosis. There was a significant interaction between condition and class (p < .001) such that a non-treatment effect was found in the low/moderate AS class (B = 4.11, p = .11) while a significant treatment effect was found in the high AS class (B = 15.58, p < .001). Consistent with prior studies demonstrating improved efficacy treating individuals with multiple mood/anxiety diagnoses, we found that individuals in the high AS class demonstrated the greatest gains from these interventions. 

Brad B. Schmidt

FSU

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