ARTICLE
Validity, reliability and factor analysis of the Polish version of the Peritraumatic Distress Inventory
1
Zakład Ratownictwa Medycznego, Uniwersytet Medyczny w Lublinie oraz Oddział Anestezjologii i Intensywnej Terapii, Uniwersytecki Szpital Dziecięcy w Lublinie
2
Zakład Pielęgniarstwa Anestezjologicznego i Intensywnej Opieki Medycznej, Uniwersytet Medyczny w Lublinie
Submission date: 2017-01-03
Final revision date: 2017-04-21
Acceptance date: 2017-06-19
Online publication date: 2018-10-27
Publication date: 2018-10-27
Corresponding author
Beata Rybojad
Zakład Ratownictwa Medycznego, Uniwersytet Medyczny w Lublinie oraz Oddział Anestezjologii i Intensywnej Terapii, Uniwersytecki Szpital Dziecięcy w Lublinie, Antoni Gebala str.6, Lublin, 20-093 Lublin, Polska
Zakład Ratownictwa Medycznego, Uniwersytet Medyczny w Lublinie oraz Oddział Anestezjologii i Intensywnej Terapii, Uniwersytecki Szpital Dziecięcy w Lublinie, Antoni Gebala str.6, Lublin, 20-093 Lublin, Polska
Psychiatr Pol 2018;52(5):887-901
KEYWORDS
TOPICS
ABSTRACT
Objectives:
Evaluation of validity and reliability of the Polish version of the Peritraumatic Distress Inventory (PDI) and conducting factor analysis of the tool.
Methods:
Cross-sectional study involved 100 employees of the Polish emergency medical system. They completed author’s questionnaire, the Polish version of the Impact Event Scale-Revised and the 13-item PDI, validated in this study.
Results:
Cronbach’s alpha coefficient for the entire scale, finally including 12 items, is 0.77. A three-factor structure of the tool has been demonstrated, explaining 60.04% of the variance. This analysis revealed moderate to high values of the factor loadings of all items which form subscales with the exception of the fifth subject. On this basis it was decided to reject the fifth item. Cronbach’s alpha for factor 1 (Loss of control and arousal) is 0.75, for factor 2 (Negative emotions) – 0.77 and for factor 3 (Feeling of threat) – 0.68. A strong positive correlation between distress and severity of symptoms of posttraumatic stress disorder (r = 0.70, p < 0.01) was shown. Additionally, distress strongly and positively correlated with the various symptoms of PTSD: intrusion, arousal and avoidance.
Conclusions:
Polish version of the PDI is a relevant and reliable distress assessment tool.
Evaluation of validity and reliability of the Polish version of the Peritraumatic Distress Inventory (PDI) and conducting factor analysis of the tool.
Methods:
Cross-sectional study involved 100 employees of the Polish emergency medical system. They completed author’s questionnaire, the Polish version of the Impact Event Scale-Revised and the 13-item PDI, validated in this study.
Results:
Cronbach’s alpha coefficient for the entire scale, finally including 12 items, is 0.77. A three-factor structure of the tool has been demonstrated, explaining 60.04% of the variance. This analysis revealed moderate to high values of the factor loadings of all items which form subscales with the exception of the fifth subject. On this basis it was decided to reject the fifth item. Cronbach’s alpha for factor 1 (Loss of control and arousal) is 0.75, for factor 2 (Negative emotions) – 0.77 and for factor 3 (Feeling of threat) – 0.68. A strong positive correlation between distress and severity of symptoms of posttraumatic stress disorder (r = 0.70, p < 0.01) was shown. Additionally, distress strongly and positively correlated with the various symptoms of PTSD: intrusion, arousal and avoidance.
Conclusions:
Polish version of the PDI is a relevant and reliable distress assessment tool.
| eISSN: | 2391-5854 |
| ISSN: | 0033-2674 |
Project no. RCN/SN/0610/2021/1 implemented from 2022 to 2024
Total value of the project: PLN 490 000
Amount funded by the MEiN: PLN 100 000
Aims of the project: Publication in Open Access mode on the Internet of English and Polish language versions of 12 consecutive issues of the journal Psychiatria Polska (years 2022-2024). Modernization and redesign of the journal’s website. Financing of the Editorial System. Copy editing and proofreading of journal issues. Counteracting scientific misinformation. Submission of electronic versions of the journal to the National Digital Library Polona and the Digital Library of Scientific Publications Academica.
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