Topics in spinal cord injury rehabilitation · 2026
Development, Validity, and Reliability of the Spinal Cord Injury Instrumental Activities of Daily Living Measure (SCI-IADLM).
СтатьяВалидационное исследованиеНазвание и аннотация: Перевод в очереди
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Luthra Twinkle, Singh Ishmeet, Malik Lipika
Аннотация
BACKGROUND: Instrumental activities of daily living (IADLs) determine community participation and independence after spinal cord injury (SCI) but are seldom measured with culturally relevant, SCI-specific instruments in India.
OBJECTIVES: To develop the Spinal Cord Injury Instrumental Activities of Daily Living Measure (SCI-IADLM) for adults with SCI in India and to examine its preliminary content validity, internal consistency, and reliability.
METHODS: This methodological instrument development study was conducted at the Indian Spinal Injuries Centre, Vasant Kunj, New Delhi. Item generation combined a focused literature review and semi-structured interviews with stakeholders (n = 15). A 3-round content validation using Lawshe's method was conducted with 17 panellists (9 clinicians, 8 individuals with SCI). The final 33-item instrument was pilot-tested in 30 purposively sampled adults with SCI. Internal consistency (Cronbach's α), inter-item correlations, and "α if item deleted" analyses were performed. Scale-level content validity index (CVI) was computed. Reliability was calculated by item analysis and test-retest reliability.
RESULTS: The SCI-IADLM comprises 33 items across 12 domains including household management, community mobility, communication, financial management, and health management. All retained items exceeded the Lawshe content validity ratio (CVR) threshold for N = 17 (CVR ≥ 0.529); scale-level CVI = 1.00. Pilot testing (n = 30) yielded Cronbach's α = 0.857. Inter-item correlations ranged from -0.426 to 0.852. Deletion of items 4 (care of pets) or 24 (educational participation) would minimally increase α to 0.865; these items were retained for theoretical importance. Participant feedback indicated clarity and acceptability. Test-retest reliability analysis demonstrated high preliminary stability, with an intraclass correlation coefficient (ICC) of 1.00 (95% confidence interval: lower bound 0.99, upper bound 1.00) in the pilot sample.
CONCLUSION: The SCI-IADLM demonstrates strong preliminary content validity and good internal consistency in a pilot sample of adults with SCI in India. Further large-scale multisite psychometric validation (test-retest reliability, factor structure/Rasch analysis, responsiveness, and cross-linguistic adaptation) is necessary.
OBJECTIVES: To develop the Spinal Cord Injury Instrumental Activities of Daily Living Measure (SCI-IADLM) for adults with SCI in India and to examine its preliminary content validity, internal consistency, and reliability.
METHODS: This methodological instrument development study was conducted at the Indian Spinal Injuries Centre, Vasant Kunj, New Delhi. Item generation combined a focused literature review and semi-structured interviews with stakeholders (n = 15). A 3-round content validation using Lawshe's method was conducted with 17 panellists (9 clinicians, 8 individuals with SCI). The final 33-item instrument was pilot-tested in 30 purposively sampled adults with SCI. Internal consistency (Cronbach's α), inter-item correlations, and "α if item deleted" analyses were performed. Scale-level content validity index (CVI) was computed. Reliability was calculated by item analysis and test-retest reliability.
RESULTS: The SCI-IADLM comprises 33 items across 12 domains including household management, community mobility, communication, financial management, and health management. All retained items exceeded the Lawshe content validity ratio (CVR) threshold for N = 17 (CVR ≥ 0.529); scale-level CVI = 1.00. Pilot testing (n = 30) yielded Cronbach's α = 0.857. Inter-item correlations ranged from -0.426 to 0.852. Deletion of items 4 (care of pets) or 24 (educational participation) would minimally increase α to 0.865; these items were retained for theoretical importance. Participant feedback indicated clarity and acceptability. Test-retest reliability analysis demonstrated high preliminary stability, with an intraclass correlation coefficient (ICC) of 1.00 (95% confidence interval: lower bound 0.99, upper bound 1.00) in the pilot sample.
CONCLUSION: The SCI-IADLM demonstrates strong preliminary content validity and good internal consistency in a pilot sample of adults with SCI in India. Further large-scale multisite psychometric validation (test-retest reliability, factor structure/Rasch analysis, responsiveness, and cross-linguistic adaptation) is necessary.