PURPOSE: Measurement invariance is necessary for meaningful group comparisons. The purpose of this study was to test measurement invariance of three patient-reported measures of depressive symptoms between neurologic and community samples. METHODS: The instruments tested included the center for epidemiologic studies depression scale (CESD-20), the patient health questionnaire-9 (PHQ-9), and the patient-reported outcome measurement information system depression short form (PROMIS-D-8). Responses from a community sample were compared to responses from samples with two neurologic conditions: multiple sclerosis and spinal cord injury. Multi-group confirmatory factor analysis was used to evaluate successive levels of measurement invariance: (a) configural invariance, i.e., equivalent item factor structure between groups; (b) metric invariance, i.e., equivalent unstandardized factor loadings between groups; and (c) scalar invariance, i.e., equivalent item intercepts between groups. RESULTS: Results of this study supported metric invariance for the CESD-20, PHQ-9, and PROMIS-D-8 scores between the community sample and the samples with neurologic conditions. The most rigorous form of invariance (i.e., scalar) also holds for the CESD-20 and the PROMIS-D-8. CONCLUSIONS: The current study suggests that depressive symptoms as measured by three different outcome measures have the same meaning across clinical and community samples. Thus, the use of these measures for group comparisons is supported.
PURPOSE: Measurement invariance is necessary for meaningful group comparisons. The purpose of this study was to test measurement invariance of three patient-reported measures of depressive symptoms between neurologic and community samples. METHODS: The instruments tested included the center for epidemiologic studies depression scale (CESD-20), the patient health questionnaire-9 (PHQ-9), and the patient-reported outcome measurement information system depression short form (PROMIS-D-8). Responses from a community sample were compared to responses from samples with two neurologic conditions: multiple sclerosis and spinal cord injury. Multi-group confirmatory factor analysis was used to evaluate successive levels of measurement invariance: (a) configural invariance, i.e., equivalent item factor structure between groups; (b) metric invariance, i.e., equivalent unstandardized factor loadings between groups; and (c) scalar invariance, i.e., equivalent item intercepts between groups. RESULTS: Results of this study supported metric invariance for the CESD-20, PHQ-9, and PROMIS-D-8 scores between the community sample and the samples with neurologic conditions. The most rigorous form of invariance (i.e., scalar) also holds for the CESD-20 and the PROMIS-D-8. CONCLUSIONS: The current study suggests that depressive symptoms as measured by three different outcome measures have the same meaning across clinical and community samples. Thus, the use of these measures for group comparisons is supported.
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Authors: Miyabi Ishihara; Daphna Harel; Brooke Levis; Alexander W Levis; Kira E Riehm; Nazanin Saadat; Marleine Azar; Danielle B Rice; Tatiana A Sanchez; Matthew J Chiovitti; Pim Cuijpers; Simon Gilbody; John P A Ioannidis; Lorie A Kloda; Dean McMillan; Scott B Patten; Ian Shrier; Bruce Arroll; Charles H Bombardier; Peter Butterworth; Gregory Carter; Kerrie Clover; Yeates Conwell; Felicity Goodyear-Smith; Catherine G Greeno; John Hambridge; Patricia A Harrison; Marie Hudson; Nathalie Jetté; Kim M Kiely; Anthony McGuire; Brian W Pence; Alasdair G Rooney; Abbey Sidebottom; Adam Simning; Alyna Turner; Jennifer White; Mary A Whooley; Kirsty Winkley; Andrea Benedetti; Brett D Thombs Journal: Depress Anxiety Date: 2018-09-20 Impact factor: 8.128
Authors: Brooke Levis; Andrea Benedetti; Kira E Riehm; Nazanin Saadat; Alexander W Levis; Marleine Azar; Danielle B Rice; Matthew J Chiovitti; Tatiana A Sanchez; Pim Cuijpers; Simon Gilbody; John P A Ioannidis; Lorie A Kloda; Dean McMillan; Scott B Patten; Ian Shrier; Russell J Steele; Roy C Ziegelstein; Dickens H Akena; Bruce Arroll; Liat Ayalon; Hamid R Baradaran; Murray Baron; Anna Beraldi; Charles H Bombardier; Peter Butterworth; Gregory Carter; Marcos H Chagas; Juliana C N Chan; Rushina Cholera; Neerja Chowdhary; Kerrie Clover; Yeates Conwell; Janneke M de Man-van Ginkel; Jaime Delgadillo; Jesse R Fann; Felix H Fischer; Benjamin Fischler; Daniel Fung; Bizu Gelaye; Felicity Goodyear-Smith; Catherine G Greeno; Brian J Hall; John Hambridge; Patricia A Harrison; Ulrich Hegerl; Leanne Hides; Stevan E Hobfoll; Marie Hudson; Thomas Hyphantis; Masatoshi Inagaki; Khalida Ismail; Nathalie Jetté; Mohammad E Khamseh; Kim M Kiely; Femke Lamers; Shen-Ing Liu; Manote Lotrakul; Sonia R Loureiro; Bernd Löwe; Laura Marsh; Anthony McGuire; Sherina Mohd Sidik; Tiago N Munhoz; Kumiko Muramatsu; Flávia L Osório; Vikram Patel; Brian W Pence; Philippe Persoons; Angelo Picardi; Alasdair G Rooney; Iná S Santos; Juwita Shaaban; Abbey Sidebottom; Adam Simning; Lesley Stafford; Sharon Sung; Pei Lin Lynnette Tan; Alyna Turner; Christina M van der Feltz-Cornelis; Henk C van Weert; Paul A Vöhringer; Jennifer White; Mary A Whooley; Kirsty Winkley; Mitsuhiko Yamada; Yuying Zhang; Brett D Thombs Journal: Br J Psychiatry Date: 2018-05-02 Impact factor: 10.671