Validity and reliability of Chinese version of Adult Carer Quality of Life questionnaire (AC-QoL) in family caregivers of stroke survivors

Abstract

The Adult Carer Quality of Life questionnaire (AC-QoL) is a reliable and valid instrument used to assess the quality of life (QoL) of adult family caregivers. We explored the psychometric properties and tested the reliability and validity of a Chinese version of the AC-QoL with reliability and validity testing in 409 Chinese stroke caregivers. We used item-total correlation and extreme group comparison to do item analysis. To evaluate its reliability, we used a test-retest reliability approach, intraclass correlation coefficient (ICC), together with Cronbach’s alpha and model-based internal consistency index; to evaluate its validity, we used scale content validity, confirmatory factor analysis (CFA) and exploratory factor analysis (EFA) via principal component analysis with varimax rotation. We found that the CFA did not in fact confirm the original factor model and our EFA yielded a 31-item measure with a five-factor model. In conclusions, although some items performed differently in our analysis of the original English language version and our Chinese language version, our translated AC-QoL is a reliable and valid tool which can be used to assess the quality of life of stroke caregivers in mainland China. Chinese version AC-QoL is a comprehensive and good measurement to understand caregivers and has the potential to be a screening tool to assess QoL of caregiver.

Psychometric evaluation of the Korean version of the Hepatitis B Quality of Life Questionnaire

“…The results of CFA suggested that the original factor structure of the HBQOL was not a good fit to the current data; accordingly, a factor structure appropriate for the current data was obtained using PCA. Our findings are similar to those of previous studies that did not confirm the original factor models using CFA in validity tests of the translated instruments [19, 20]. When an instrument is translated from the original language to another language, CFA does not always confirm the appropriateness of the original factor model.…”

“…According to previous studies, if the observed original factor structure of an instrument does not fit a new sample well when the instrument is translated and used in another language, PCA may be used to improve the model [19, 20]. An exploratory principal components analysis was performed, using the principal components method with varimax rotation.…”

Development and validation of the Nurse’s Workplace Mental Health Questionnaire

“…CFA was performed to ascertain the goodness of fit of the measurement model of the NWMHQ. The results indicate that the hypothesized model consisting of the original theoretical framework generated through EFA was supported [ 35 ]. The SDS was used to test the criterion correlation validity, and Pearson’s correlation coefficients were calculated for the total scores.…”

Effects of care transitions intervention mode on the benefit-finding in caregivers for patients with acute cerebral infarction

“…A 5-point Likert scale was used, with 1 being completely none, and 5 being very much, with a total score of 22 to 110 points. The scale has been tested in caregivers of patients with ischemic stroke [13]. The scale has an overall Cronbach's α coefficient of 0.939 and coefficients of 0.813~0.976 for each dimension.…”