PMID- 23590808
OWN - NLM
STAT- MEDLINE
DCOM- 20130701
LR  - 20220408
IS  - 1477-7525 (Electronic)
IS  - 1477-7525 (Linking)
VI  - 11
DP  - 2013 Apr 17
TI  - Construct validity of the Assessment of Quality of Life - 6D (AQoL-6D) in 
      community samples.
PG  - 61
LID - 10.1186/1477-7525-11-61 [doi]
AB  - BACKGROUND: The Assessment of Quality of Life - 6D scale (AQoL-6D) is a 
      self-report instrument designed to provide a sensitive multidimensional 
      evaluation of health related quality of life. The current paper assesses the 
      construct, concurrent and convergent validity of the AQoL-6D in a combined 
      longitudinal population sample drawn from across urban, regional and remote areas 
      of Australia. METHODS: The AQoL-6D was administered within the Hunter Community 
      Study and the Australian Rural Mental Health Study over time (mean years 
      lag = 3.90, SD = 1.30). Observations with sufficient data were used to confirm 
      the construct validity of the AQoL-6D domains and higher-order structure using 
      confirmatory factor analyses (CFA, N = 7915). The stability of this structure 
      across cohorts and over time was assessed using multi-group CFA. Additionally, 
      the concurrent validity (against the SF-36) and convergent validity of AQoL-6D 
      domains and factors were assessed. RESULTS: The construct validity of the AQoL-6D 
      domains was considered satisfactory. Two higher-order factors, representing the 
      physical and psychological components of quality of life were identified (CFA 
      model fit: RMSEA = .07, SRMR = .03; TLI = .96, CFI = .98). These factors 
      displayed group and temporal invariance, as well as concurrent and convergent 
      validity against a range of measures. Recommendations for the derivation of 
      summary scores are provided, together with a provisional set of norms. 
      CONCLUSIONS: The AQoL-6D is a useful tool for assessing quality of life 
      impairment in epidemiological cohort studies, both cross-sectionally and over 
      time. It displays appropriate levels of construct, concurrent and convergent 
      validity. Conceptualisation of higher-order factors as representing the physical 
      and psychological aspects of quality of life impairment may increase the 
      sensitivity and appeal of the AQoL-6D, particularly for studies examining 
      predictors of and changes in social and psychological outcomes.
FAU - Allen, Joanne
AU  - Allen J
AD  - Centre for Translational Neuroscience and Mental Health, University of Newcastle 
      and Hunter New England Health, Newcastle, NSW, Australia. 
      Joanne.Allen@newcastle.edu.au
FAU - Inder, Kerry J
AU  - Inder KJ
FAU - Lewin, Terry J
AU  - Lewin TJ
FAU - Attia, John R
AU  - Attia JR
FAU - Kelly, Brian J
AU  - Kelly BJ
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20130417
PL  - England
TA  - Health Qual Life Outcomes
JT  - Health and quality of life outcomes
JID - 101153626
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Aged
MH  - Australia
MH  - Cohort Studies
MH  - Factor Analysis, Statistical
MH  - Female
MH  - *Health Status Indicators
MH  - Health Surveys
MH  - Humans
MH  - Longitudinal Studies
MH  - Male
MH  - Middle Aged
MH  - *Quality of Life
MH  - Reproducibility of Results
MH  - Rural Population/statistics & numerical data
MH  - Sex Distribution
MH  - Socioeconomic Factors
MH  - Surveys and Questionnaires/*standards
MH  - Time and Motion Studies
MH  - Urban Population/statistics & numerical data
PMC - PMC3639231
EDAT- 2013/04/18 06:00
MHDA- 2013/07/03 06:00
PMCR- 2013/04/17
CRDT- 2013/04/18 06:00
PHST- 2012/11/23 00:00 [received]
PHST- 2013/03/28 00:00 [accepted]
PHST- 2013/04/18 06:00 [entrez]
PHST- 2013/04/18 06:00 [pubmed]
PHST- 2013/07/03 06:00 [medline]
PHST- 2013/04/17 00:00 [pmc-release]
AID - 1477-7525-11-61 [pii]
AID - 10.1186/1477-7525-11-61 [doi]
PST - epublish
SO  - Health Qual Life Outcomes. 2013 Apr 17;11:61. doi: 10.1186/1477-7525-11-61.