خلاصة:
Objective: The purposes of this study were to evaluate the psychometric characteristics and
perform a factor analysis of McGill Quality of Life Questionnaire (MQOL) in a sample of
recovered depressed patients.
Methods: Present study was a cross sectional research. Data were obtained from a sample of
recovered depressed patients. A total of 354 participants (67 males, 287 females) were assessed
using the structured clinical interview for DSM-IV disorders (SCID) to ensure their full recovery
from their most recent episode of depression. Then, they completed a series of self-report
measures, including the McGill Quality of Life Questionnaire. Confirmatory factor analysis
using LISREL-8.54 and Cronbach’s alpha using SPSS-16 were done for analyzing data.
Results: Descriptive statistics for the MQOL were performed, and confirmatory factor analysis
was used to assess the fitness of the hypothesized factor structure. The Cronbach α coefficients
were calculated for the questionnaire and its each subscale to examine the internal reliability,
which was found to be high for the overall questionnaire as well as its each subscale, as α
coefficients ranged from 0.58 (for the physical scale) to 0.88 (for the existential scale).
Conclusion: MQOL can be employed as a tool for assessing quality of life in research and
practice in these patients.
ملخص الجهاز:
"Article info: Received: 06 Jul. 2015 Accepted: 08 Dec. 2015 Keywords: Quality of life, Instrument, Depression, Factor analysis A B S T R A C T Objective: The purposes of this study were to evaluate the psychometric characteristics and perform a factor analysis of McGill Quality of Life Questionnaire (MQOL) in a sample of recovered depressed patients.
Research indicates that QoL is influenced by affective states (Corrigan & Buican, 1995; Fera, Cascio, Angelini, Martini, & Guidetti, 2003; Hunt & McKenna, 1992), physical symp- toms (Byar, Berger, Bakken, & Cetak, 2006), and satisfaction with daily activities (Goethe & Fischer, 1995; Wells et al.
Other instruments such as the McGill quality of life (MQOL) questionnaire has been translated and validated in various languages (Bentur & Resnizky, 2005; Cohen, Mount, Tomas, & Mount, 1996; Hu, 2003; Kim et al.
Previous evaluations of the psychometric properties of MQOL have shown it as a reliable and valid tool to measure the QoL of people with clinical depression in North American samples (Cohen et al.
MQOL is a self-report measure of quality of life, which was developed by Cohen, Mount, Strobel, and Bui (1995) in Canada (the scale can be obtained at http://www.
Although, the current study provides an initial evaluation of MQOL in an Iranian depressed popula- tion, additional research with different samples is necessary to document the validity and internal structure of this scale.
Validity of the McGill Quality of Life Questionnaire in the palliative care setting: a multi-centre Canadian study demon- strating the importance of the existential domain."