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Panic Disorder Severity Scale

Panic Disorder Severity Scale (PDSS; Shear et al., 1997).

The PDSS is a 7-item clinician-report measure assessing panic disorder in adults. The PDSS can be used as a screening tool (Shear et al., 1997), a diagnostic tool (Shear et al., 2001), and to monitor symptom change over time (Shear et al., 2001). The PDSS has a separate version for children and adolescents (PDSS-C, Elkins, Pincus, & Comer, 2013), although it is not freely available.  Each item on the PDSS is rated on a 5-point Likert scale from zero (“none”) to four (“extreme”). The PDSS is designed to take a few minutes to administer and can be scored by adding the coded responses. The PDSS demonstrates questionable internal consistency (α = .65) and good inter-rater reliability (r = .87; Shear et al., 1997). The PDSS demonstrates concurrent validity with the panic disorder scale of the Anxiety Disorders Interview Schedule (ADIS; Di Nardo, Brown, & Barlow, 1994; Shear et al., 1997). It also demonstrates divergent validity with non-panic severity scales of the ADIS and other anxiety measures (Shear et al., 1997). The PDSS is available in Turkish, Japanese, Korean, Spanish, Portuguese, Italian, Hungarian, Finnish, and Serbo-Croatian (Monkul et al., 2004; Lim, Yu, & Kim, 2007; Yamamoto et al., 2004). A valid self-report measure of the PDSS has also been developed to eliminate the need for a trained interviewer, as well as to allow individuals to monitor their own symptoms on a weekly basis (PDSS-SR; Houck, Spiegel, Shear, & Rucci, 2002). The measure is available online (http://www.outcometracker.org).

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