Dimensional structure and psychopathology correlates of the fear survey schedule (FSS-III) in a phobic population: A factorial definition of agoraphobia

Abstract

The responses of 703 non-institutionalized phobics to the Fear Survey Schedule (FSS-III) were factor-analyzed utilizing a principal components procedure. Factors previously identified in student, adolescent and ‘non-phobic patient’ populations—(I) Social Anxiety, (III) Fears related to Bodily Injury, Death and Illness. (IV) Fear of Display to Sexual and Aggressive Scenes, (V) Small Animal Fears—were replicated. Additionally, an Agoraphobia (II) factor, corroborating recent findings by Hallam and Hafner (1978), and pointing to the specificity of this fear, emerged. Due to substantially high intercorrelations found, the Social Inadequacy dimension of the Symptom Checklist (SCL-90) and the Social Anxiety scale (I), on the one hand, and the Agoraphobic dimension of the SCL-90 and the Agoraphobia scale (II), on the other, could be used interchangeably with phobic populations. A higher-order factor analysis run on psychopathology scales employed, including factored FSS scales, yielded three components, (1) Neuroticism, (2) Phobia and (3) Agoraphobia. Opportunity was taken to define the Agoraphobic Syndrome empirically. A specific Somatization dimension was as highly related to Neuroticism, as to the higher-order Agoraphobic cluster, clearly supporting clinical observations with regard to the Agoraphobic syndrome. Some interesting findings are focused upon and discussed.