Hooshang Saberi1,2, Farzad Vosoughi3,4, Nazi Derakhshanrad3,4, Mirsaeed Yekaninejad5, Zahid Hussain Khan6, Amir Hassan Kohan4, Shahriar Parvaneh7, Setareh Ghahari7, Fereydoon Agheli4, Fardis Vosoughi8. 1. Department of Neurosurgery, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran. hgsaberi@yahoo.com. 2. Brain and Spinal cord injuries Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran. hgsaberi@yahoo.com. 3. Department of Neurosurgery, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran. 4. Brain and Spinal cord injuries Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran. 5. Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. 6. Depatment of Anesthesiology, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran. 7. School of Rehabilitation Therapy, Queen Univiversity, Kingston, ON, Canada. 8. Department of Orthopedic Surgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Abstract
STUDY DESIGN: Cross-sectional psychometric study. OBJECTIVES: To translate the Spinal Cord Independence Measure III (SCIM-III) into Persian, to evaluate it culturally and to analyze the validity and reliability of the Persian version of the SCIM-III (P-SCIM). SETTING: Brain and Spinal Injury Research Center (BASIR), Tehran, Iran. METHODS: The P-SCIM was developed by forward translation, back-translation, and cultural equivalence assessment procedure. The authors studied: (a) correlation of P-SCIM with the Functional Independence Measure (FIM™) for determining convergence validity, (b) P-SCIM scores in neurological categories for comparison and evaluating discriminative validity, (c) Inter-rater reliability of P-SCIM, (d) Cronbach's alpha for measuring internal consistency of P-SCIM-III. RESULTS: The validity of the scale was supported by a Pearson correlation coefficient of > 0.9 (p < 0.001) between FIM™ and P-SCIM. The Persian SCIM was found to be valid in discriminating different neurological categories. The Inter-rater reliability was concluded by Intraclass correlations of a coefficient > 0.9. Bland-Altman analysis demonstrated good agreement between our raters (mean difference: 0.7, limit of agreement: - 8.09-9.58). Also internal consistency of the scale was shown by Cronbach's alpha to be > 0.7 (0.86). CONCLUSION: P-SCIM-III is a valid and consistent tool for determining functionality in Persian speaking people with spinal cord injury.
STUDY DESIGN: Cross-sectional psychometric study. OBJECTIVES: To translate the Spinal Cord Independence Measure III (SCIM-III) into Persian, to evaluate it culturally and to analyze the validity and reliability of the Persian version of the SCIM-III (P-SCIM). SETTING: Brain and Spinal Injury Research Center (BASIR), Tehran, Iran. METHODS: The P-SCIM was developed by forward translation, back-translation, and cultural equivalence assessment procedure. The authors studied: (a) correlation of P-SCIM with the Functional Independence Measure (FIM™) for determining convergence validity, (b) P-SCIM scores in neurological categories for comparison and evaluating discriminative validity, (c) Inter-rater reliability of P-SCIM, (d) Cronbach's alpha for measuring internal consistency of P-SCIM-III. RESULTS: The validity of the scale was supported by a Pearson correlation coefficient of > 0.9 (p < 0.001) between FIM™ and P-SCIM. The Persian SCIM was found to be valid in discriminating different neurological categories. The Inter-rater reliability was concluded by Intraclass correlations of a coefficient > 0.9. Bland-Altman analysis demonstrated good agreement between our raters (mean difference: 0.7, limit of agreement: - 8.09-9.58). Also internal consistency of the scale was shown by Cronbach's alpha to be > 0.7 (0.86). CONCLUSION: P-SCIM-III is a valid and consistent tool for determining functionality in Persian speaking people with spinal cord injury.
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