Reliability and validity of the self-report version of the Panic Disorder Severity Scale in Korea

Lee, Eun‐Ho; Kim, Ji-Hae; Yu, Bum-Hee

doi:10.1002/da.20461

Cited by 41 publications

(44 citation statements)

References 39 publications

(28 reference statements)

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“…Items 1-3 loaded on the first factor, and the other 4 items loaded on the second factor. Although the result was inconsistent with the previous one-factor model of PDSS-SR [13], it was consistent with the twofactor structure of PDSS and the general features of panic disorder, to be specific, cognitive components (i.e., expectation anxiety, phobic features), physical components and anxiety, even if the entries under the factor were different from those of previous studies [18,19].…”

Section: Discussioncontrasting

confidence: 93%

“…The test-retest reliability was 0.42, and the correlations of each item were between 0.13 and 0.37. The reliability coefficient of the retest was lower than those obtained in previous studies [12,13], whose intervals were quite short (1-5 days) after the initial test. The retest interval of this study was 2 weeks, during which the characteristics measured by the scale may have changed.…”

Section: Discussioncontrasting

confidence: 82%

“…The PDSS, a scale intended for determining severity in individuals already diagnosed with PD, is effectively utilized for the assessment, prevention, and intervention phases of PD. However, it is costly and time-consuming to train general doctors to use the PDSS [3,13]. Hence, a cost-effective, accurate, and easy-to-administer measure for PD is still needed.…”

Section: Introductionmentioning

confidence: 99%

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Reliability, validity and cut-off score of the Chinese version of the panic disorder severity scale self-report form in patients with panic disorder

Liu

Chen

et al. 2020

BMC Psychiatry

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Background: Panic disorder (PD) is often undiagnosed, misdiagnosed, or untreated in non-psychiatric clinical settings. Therefore, a cost-effective, accurate and easy-to-administer instrument for PD assessment is still needed. For that reason, the self-report version of the Panic Disorder Severity Scale (PDSS-SR) has been developed and suggested to be a reliable and useful tool in clinical and research settings. The current study aims to evaluate the reliability and validity of the Chinese version of the PDSS-SR and determine the cut-off score of the PDSS-SR. Methods: A total of 133 patients with PD in Shanghai were assessed by the PDSS-SR, PDSS and Hamilton Anxiety Rating Scale (HAMA). Moreover, 117 patients with non-PD anxiety and 51 healthy subjects also completed the PDSS-SR to construct a receiver operating characteristic (ROC) curve with the scores of PD patients. Results: The internal consistency (Cronbach's α) of the PDSS-SR was 0.72-0.80, and the interrater correlation coefficient was 0.78. The results of principal component analysis and varimax rotation indicated that the PDSS-SR had a two-factor structure, with all seven items having salient loadings. The cut-off score was 4, which was associated with high sensitivity (96.03%) and specificity (61.31%). Conclusions:The findings demonstrate that these items and the total score of the PDSS-SR have acceptable reliability and validity in patients with PD and that the PDSS-SR can be used by general doctors for clinical screening in China.

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Section: Discussioncontrasting

confidence: 93%

Section: Discussioncontrasting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

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Reliability, validity and cut-off score of the Chinese version of the panic disorder severity scale self-report form in patients with panic disorder

Liu

Chen

et al. 2020

BMC Psychiatry

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“…To date, nine studies have investigated the psychometric properties of the scales, five on the PDSS [5,[7][8][9][10] and three studies on the PDSS-SR [6,11,12]. A single study examined both scales [13] but used a 5-item version of the PDSS-SR that did not include the items on occupational and social consequences.…”

Section: Introductionmentioning

confidence: 99%

“…French, Italian, Japanese, Turkish, and Spanish) and modified for use with children [14]. Likewise, the PDSS-SR has been found to possess excellent psychometric properties in the English-language original [6] as well as in Korean and Spanish versions [11,12].…”

Section: Introductionmentioning

confidence: 99%

Psychometric analysis of the Swedish panic disorder severity scale and its self-report version

Svensson

Nilsson

Johansson

et al. 2019

Nordic Journal of Psychiatry

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Background: Panic disorder, with or without agoraphobia (PDA or PD, respectively), is a major public health problem. After having established a PD diagnosis based on the DSM or the ICD systems, the Panic Disorder Severity Scale (PDSS) is the most widely used interview-based instrument for assessing disorder severity. There is also a self-report version of the instrument (PDSS-SR); both exist in a Swedish translation but their psychometric properties remain untested. Methods: We studied 221 patients with PD/PDA recruited to a randomized controlled preference trial of cognitive-behavioral and brief panic-focused psychodynamic psychotherapy. In addition to PDSS and PDSS-SR the participants completed self-reports including the Clinical Outcome in Routine Evaluation-Outcome Measure, Montgomery Åsberg Depression Rating Scale, Sheehan Disability Scale, Bodily Sensations Questionnaire and the Mobility Inventory for Agoraphobia. Results: PDSS and PDSS-SR possessed excellent psychometric properties (internal consistency, test-retest reliability) and convergent validity. A single factor structure for both versions was not confirmed. In terms of clinical utility, the PDSS had very high inter-rater reliability and correspondence with PD assessed via structured diagnostic interview. Both versions were sensitive to the effects of PD-focused treatment, although subjects scored systematically lower on the self-report version. Conclusions: The study confirmed the reliability and validity of the Swedish versions of PDSS and PDSS-SR. Both versions were highly sensitive to the effects of two PD-focused treatments and can be used both in clinical and research settings. However, further investigation of the factor structures of both the PDSS and PDSS-SR is warranted. Trial Registration: ClinicalTrials.gov identifier: NCT01606592 ARTICLE HISTORY

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Psychometric properties of the panic disorder severity scale: clinician‐administered and self‐report versions

Wuyek

Antony

McCabe

2011

Clin Psychology and Psychoth

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The Panic Disorder Severity Scale (PDSS) is a seven-item scale designed to assess overall severity of panic disorder symptoms. Although the PDSS is widely used, there have been limited independent studies confirming reliability and validity, particularly of the self-report version of the PDSS, and even fewer studies directly comparing the two versions. Given the need for psychometrically sound measures that comprehensively assess the main features of panic disorder, this study examined the psychometric properties of both the clinician-administered and self-report versions of the PDSS. As the PDSS targets symptom severity across a number of specific domains, PDSS items were compared to several scales designed to measure similar constructs, including the Anxiety Sensitivity Index, Illness Intrusiveness Ratings Scale, Mobility Inventory for Agoraphobia and Agoraphobic Cognitions Questionnaire. Results indicated acceptable reliability for both the clinician-administered and self-report versions. Results indicated acceptable validity for the clinician-administered PDSS and promising validity for the self-report. However, correlations between both versions of the PDSS and comparison measures were lower than predicted. Results also indicated that scores on the self-report and clinician-administered versions were significantly associated, although correlations between specific PDSS items on the two versions were also lower than expected. Results suggest that total scores on each of the PDSS versions provide a useful indication of panic-related severity. However, clinicians and researchers are cautioned against relying on scores from individual items to measure specific constructs due to their poor specificity.

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Reliability and validity of the self-report version of the Panic Disorder Severity Scale in Korea

Abstract: The findings of this study strongly support the reliability and validity of the PDSS-SR. It is expected that this scale will be helpful in clinical settings and research protocols in Korea.

Cited by 41 publications

References 39 publications

Reliability, validity and cut-off score of the Chinese version of the panic disorder severity scale self-report form in patients with panic disorder

Reliability, validity and cut-off score of the Chinese version of the panic disorder severity scale self-report form in patients with panic disorder

Psychometric analysis of the Swedish panic disorder severity scale and its self-report version

Psychometric properties of the panic disorder severity scale: clinician‐administered and self‐report versions

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