title: Psychometric Properties of a New Instrument for Assessing Irrational Thoughts in Burn Victims (Scale of Irrational Thoughts After Burn Injuries).
abstract: The objective of this study was to develop and evaluate a scale for assessing irrational thoughts among burned patients. The present study was mixed (qualitative-methodologic) which was performed in several stages such as investigating similar or related scales, interviewing with patients and psychologists. Content validity was calculated by modified KAPPA basis on relevance and clarity. The reliability of the scale was measured using internal consistency and the test-retest method. To determine the construct validity, exploratory factor analysis approach using maximum likelihood extraction with varimax rotation was conducted. A total of 329 burned patients were recruited from Tehran, Tabriz, and Kermanshah provinces of Iran. Modified kappa scores were 0.80 and 0.91 for relevance and clarity of the items included in scale. The Cronbach alpha for overall scale, subscale 1, and subscale 2 were 0.89, 0.88, and 0.8, respectively. Test-retest reliability was also acceptable (intraclass correlation coefficient = 0.80). The best solution from the maximum likelihood analysis of the 39 items of the scale revealed two factors corresponding to the two subscales with 14 items that subscale 1 (self-acceptance) consisted of 10 statements accounting for 60% of the variance (eigenvalue = 5.04) and subscale 2 (distastefulness and pity) consisted of four statements accounting for 40% of the variance (eigenvalue = 1.53). The scale reflects acceptable levels of validity and reliability in assessing the irrational thoughts among Iranian patients. Moreover, the testing populations of both patients with burned faces and patients with other burned body parts indicates that the scale may also be applicable for patients' burn disfigurements on any part of their bodies.
authors.affiliation: From the *Department of Statistics and Epidemiology, Faculty of Health, Tabriz University of Medical Sciences, Iran; †Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Iran; ‡Research Center of Psychiatry and Behavioral sciences, Tabriz University of Medical Sciences, Tabriz, Iran; §Department of Biomedicine and Public Health, University of Skövde, Skövde, Sweden; ‖Health Services Management Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; ¶Department of Surgery, Sina Burn Center, Tabriz University of Medical Sciences, Iran; #Department of Architecture and Civil Engineering, Chalmers University of Technology, Gothenburg, Sweden; and **Sociologist at Tabriz University of Medical Sciences, Iran.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Zare
authors.forename: Homayoun
authors.initials: H
authors.lastname: Sadeghi-Bazargani
authors.forename: Fatemeh
authors.initials: F
authors.lastname: Ranjbar
authors.forename: Diana
authors.initials: D
authors.lastname: Stark Ekman
authors.forename: Mostafa
authors.initials: M
authors.lastname: Farahbakhsh
authors.forename: Hemmat
authors.initials: H
authors.lastname: Maghsoudi
authors.forename: Robert
authors.initials: R
authors.lastname: Ekman
authors.forename: Farideh
authors.initials: F
authors.lastname: Nasiri
mesh_terms: D000223:Adaptation, Psychological; D000342:Affective Symptoms / Q000175:diagnosis*; D001007:Anxiety / Q000175:diagnosis; D002056:Burns / Q000523:psychology* / Q000628:therapy; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007492:Iran; D008297:Male; D011594:Psychometrics; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*