TY - JOUR
T1 - Measuring psychological trauma after spinal cord injury
T2 - Development and psychometric characteristics of the SCI-QOL Psychological Trauma item bank and short form
AU - Kisala, Pamela A.
AU - Victorson, David
AU - Pace, Natalie
AU - Heinemann, Allen W.
AU - Choi, Seung W.
AU - Tulsky, David S.
N1 - Publisher Copyright:
© The Academy of Spinal Cord Injury Professionals, Inc. 2015.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - Objective: To describe the development and psychometric properties of the SCI-QOL Psychological Trauma item bank and short form. Design: Using a mixed-methods design, we developed and tested a Psychological Trauma item bank with patient and provider focus groups, cognitive interviews, and item response theory based analytic approaches, including tests of model fit, differential item functioning (DIF) and precision. Setting: We tested a 31-item pool at several medical institutions across the United States, including the University of Michigan, Kessler Foundation, Rehabilitation Institute of Chicago, the University of Washington, Craig Hospital and the James J. Peters/Bronx Veterans Administration hospital. Participants: A total of 716 individuals with SCI completed the trauma items Results: The 31 items fit a unidimensional model (CFI=0.952; RMSEA=0.061) and demonstrated good precision (theta range between 0.6 and 2.5). Nine items demonstrated negligible DIF with little impact on score estimates. The final calibrated item bank contains 19 items Conclusion: The SCI-QOL Psychological Trauma item bank is a psychometrically robust measurement tool from which a short form and a computer adaptive test (CAT) version are available.
AB - Objective: To describe the development and psychometric properties of the SCI-QOL Psychological Trauma item bank and short form. Design: Using a mixed-methods design, we developed and tested a Psychological Trauma item bank with patient and provider focus groups, cognitive interviews, and item response theory based analytic approaches, including tests of model fit, differential item functioning (DIF) and precision. Setting: We tested a 31-item pool at several medical institutions across the United States, including the University of Michigan, Kessler Foundation, Rehabilitation Institute of Chicago, the University of Washington, Craig Hospital and the James J. Peters/Bronx Veterans Administration hospital. Participants: A total of 716 individuals with SCI completed the trauma items Results: The 31 items fit a unidimensional model (CFI=0.952; RMSEA=0.061) and demonstrated good precision (theta range between 0.6 and 2.5). Nine items demonstrated negligible DIF with little impact on score estimates. The final calibrated item bank contains 19 items Conclusion: The SCI-QOL Psychological Trauma item bank is a psychometrically robust measurement tool from which a short form and a computer adaptive test (CAT) version are available.
KW - Patient outcomes assessment
KW - Psychological trauma
KW - Psychometrics
KW - Quality of life
KW - Spinal cord injuries
UR - http://www.scopus.com/inward/record.url?scp=84941210080&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84941210080&partnerID=8YFLogxK
U2 - 10.1179/2045772315Y.0000000022
DO - 10.1179/2045772315Y.0000000022
M3 - Article
C2 - 26010967
AN - SCOPUS:84941210080
SN - 1079-0268
VL - 38
SP - 326
EP - 334
JO - Journal of Spinal Cord Medicine
JF - Journal of Spinal Cord Medicine
IS - 3
ER -