TY - JOUR
T1 - Cross-cultural and construct validity of the Animated Activity Questionnaire
AU - Peter, Wilfred F.
AU - de Vet, Henrika C.W.
AU - Boers, Maarten
AU - Harlaar, Jaap
AU - Roorda, Leo D.
AU - Poolman, Rudolf W.
AU - Scholtes, Vanessa A.B.
AU - Steultjens, Martijn
AU - Hendry, Gordon J.
AU - Roos, Ewa M.
AU - Guillemin, Francis
AU - Benedetti, Maria G.
AU - Cavazzuti, Lorenzo
AU - Escobar, Antonio
AU - Dafinrud, Hanne
AU - Terwee, Caroline B.
N1 - Acceptance from webpage - ELL 10/03/20
AAM: uploaded 15-11-16; 12m embargo
Funder: Funding: European League Against Rheumatism (EULAR)
PY - 2017/9
Y1 - 2017/9
N2 - Objective: The
Animated Activity Questionnaire (AAQ) assesses activity limitations in patients
with hip/knee osteoarthritis and consists of video animations; the patients
choose the animation that best matches their own performance. The AAQ has shown
good validity and reliability. This study aims to evaluate cross‐cultural and
construct validity of the AAQ.Methods: Cross‐cultural
validity was assessed using ordinal logistic regression analysis to evaluate
differential item functioning (DIF) across 7 languages. Construct validity was
assessed by testing correlations between the AAQ and a patient‐reported outcome
measure (PROM) and performance‐based tests.Results: Data
from 1,239 patients were available. Compared to the Dutch language (n = 279),
none of the 17 items showed DIF in English (n = 202) or French (n = 193), 1
item showed uniform DIF in Spanish (n = 99) and Norwegian (n = 62), and 2 items
showed uniform DIF in Danish (n = 201). In all these languages, the occurrence
of DIF did not influence the total score, which remained comparable with the
original Dutch version. For Italian (n = 203) versus Dutch, however, 6 items
showed uniform DIF, and 1 item showed nonuniform DIF, indicating some problems
with the cross‐cultural validity between these countries. With regard to
construct validity, the correlations with PROM (0.74) and performance‐based
tests (0.36–0.68) were partly as expected (>0.60).Conclusion: The
AAQ, an innovative tool to measure activity limitations that can be placed on
the continuum between PROMs and performance‐based tests, showed a good overall
cross‐cultural validity, and seems to have great potential for international
use in research and daily clinical practice in many European countries.
AB - Objective: The
Animated Activity Questionnaire (AAQ) assesses activity limitations in patients
with hip/knee osteoarthritis and consists of video animations; the patients
choose the animation that best matches their own performance. The AAQ has shown
good validity and reliability. This study aims to evaluate cross‐cultural and
construct validity of the AAQ.Methods: Cross‐cultural
validity was assessed using ordinal logistic regression analysis to evaluate
differential item functioning (DIF) across 7 languages. Construct validity was
assessed by testing correlations between the AAQ and a patient‐reported outcome
measure (PROM) and performance‐based tests.Results: Data
from 1,239 patients were available. Compared to the Dutch language (n = 279),
none of the 17 items showed DIF in English (n = 202) or French (n = 193), 1
item showed uniform DIF in Spanish (n = 99) and Norwegian (n = 62), and 2 items
showed uniform DIF in Danish (n = 201). In all these languages, the occurrence
of DIF did not influence the total score, which remained comparable with the
original Dutch version. For Italian (n = 203) versus Dutch, however, 6 items
showed uniform DIF, and 1 item showed nonuniform DIF, indicating some problems
with the cross‐cultural validity between these countries. With regard to
construct validity, the correlations with PROM (0.74) and performance‐based
tests (0.36–0.68) were partly as expected (>0.60).Conclusion: The
AAQ, an innovative tool to measure activity limitations that can be placed on
the continuum between PROMs and performance‐based tests, showed a good overall
cross‐cultural validity, and seems to have great potential for international
use in research and daily clinical practice in many European countries.
KW - Animated Activity Questionnaire
KW - osteoarthritis
KW - activity limitations
U2 - 10.1002/acr.23127
DO - 10.1002/acr.23127
M3 - Article
VL - 69
SP - 1349
EP - 1359
JO - Arthritis Care and Research
JF - Arthritis Care and Research
SN - 2151-464X
IS - 9
ER -