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Advisor(s)
Abstract(s)
Objective: To evaluate the psychometric properties, along with
cross-cultural invariance analysis, of the Cancer Appetite and
Symptom Questionnaire (CASQ).
Method: Data from 555 United Kingdom (UK) cancer patients
were used to evaluate the psychometric properties of the CASQ.
Construct validity was assessed through factorial and convergent
validity. We conducted a confirmatory factor analysis using as
indices the chi-square ratio by degrees of freedom (χ2/df), the
comparative fit index (CFI), the goodness of fit index (GFI),
and the root mean square error of approximation (RMSEA).
Convergent validity was estimated by the items’ average
variance extracted (AVE). Reliability was estimated by composite
reliability and internal consistency. Factorial invariance analysis
of the CASQ was evaluated by multigroup analysis (Δχ2) using
the UK and Brazilian samples.
Results: All items showed adequate psychometric sensitivity in
the UK sample. One item was removed and four correlations
were included between errors with an appropriate fit of the model
(χ2/df = 2.674, CFI = 0.966, GFI = 0.964, RMSEA = 0.055).
The reliability of the CASQ was adequate and the convergent
validity was low. The factorial structure of the CASQ differed
across countries, and a lack of measurement invariance for the
two countries was observed (λ: Δχ2 = 64.008, p < 0.001; i: Δχ2 =
3515.047, p < 0.001; Res: Δχ2 = 4452.504, p < 0.001).
Conclusion: The CASQ showed adequate psychometric
properties in the UK sample. The ability to estimate loss of
appetite and the presence of symptoms was different between
UK and Brazilian patients.
Description
Keywords
Cross-cultural study Cancer Symptom Appetite
Citation
Trends in Psychiatry and Psychotherapy, 40(2), 152-159 Doi: 10.1590/2237-6089-2017-0093
Publisher
Associação de Psiquiatria do Rio Grande do Sul