Discomfort intolerance: Development of a construct and measure relevant to panic disorder.
The construct of discomfort intolerance (proposed as an individual difference in the ability to tolerate uncomfortable sensations) is introduced and psychometric properties of a measure of this trait are provided. The Discomfort Intolerance Scale (DIS), a self-report measure of discomfort intolerance, was evaluated using a variety of samples (total N approximately 1700), including patients with panic disorder, clinical controls, and nonclinical community members. Factor analyses suggest the DIS contains two factors, including a factor indexing the ability to tolerate discomfort and pain (Factor 1: alpha = .91), and a factor, which appears to measure avoidance of physical discomfort (Factor 2: alpha = .72). Cross-time reliability shows good stability across 12 weeks (Factor 1 = .63, Factor 2 = .66). Convergent and discriminant validity coefficients indicated that the DIS performed as expected against established measures of psychopathology. The DIS appears to be a sound measure of a broad individual difference variable tapping the ability to tolerate a variety of uncomfortable sensations and may be relevant to the pathogenesis of anxiety disorders.
Schmidt
Norman B
NB
Department of Psychology, Florida State University, Tallahassee, FL 32306, USA. Schmidt@psy.fsu.edu
Richey
J Anthony
JA
Fitzpatrick
Kathleen Kara
KK
D000339:Affect; D001290:Attitude; D003863:Depression / Q000175:diagnosis / Q000523:psychology; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005163:Factor Analysis, Statistical; D006801:Humans; D016584:Panic Disorder / Q000175:diagnosis* / Q000523:psychology; D010809:Physical Fitness; D011594:Psychometrics; D012720:Severity of Illness Index; D019966:Substance-Related Disorders / Q000175:diagnosis; D011795:Surveys and Questionnaires