title: How can we best assess the quality of life of people with dementia? the Bath Assessment of Subjective Quality of Life in Dementia (BASQID).
abstract: OBJECTIVE
  The study aim was to develop a measure of self-reported quality of life (QoL) for people with mild to moderate dementia based on their views-the Bath Assessment of Subjective Quality of Life in Dementia (BASQID).
  
  
  METHODS
  We developed the measure through multiple stages. Two field tests of the measure (ns = 60 and 150) enrolled people with dementia from a memory clinic, and we used the data to analyze the psychometric properties of the scale. Nested within this was a longitudinal investigation of 36 Alzheimer's disease patients prescribed with acetylcholinesterase inhibitors.
  
  
  RESULTS
  The BASQID contains 14 items assessing a range of QoL issues. Results showed that the BASQID satisfies the criteria of a valid, reliable, and acceptable assessment of subjective QoL. Scores were responsive to changes in QoL over 3 months. Low association between the BASQID and the Mini-Mental State Examination indicates that cognitive function may influence QoL but is an indirect measure of the QoL experienced during dementia.
  
  
  CONCLUSIONS
  The BASQID provides a means of better understanding the experiences, perceptions, and beliefs of people with dementia. It does this through acknowledgement of the many influences on QoL over and above health status. Practitioners and researchers can use the BASQID alongside objective assessments of dementia to obtain a complete appraisal of a person's QoL.
authors.affiliation: Department of Psychology, World Health Organization Centre for the Study of Quality of Life, University of Bath, England. Richard.trigg@ntu.ac.uk
authors.forename: Richard
authors.initials: R
authors.lastname: Trigg
authors.forename: Suzanne M
authors.initials: SM
authors.lastname: Skevington
authors.forename: Roy W
authors.initials: RW
authors.lastname: Jones
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003704:Dementia / Q000523:psychology*; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D008297:Male; D008875:Middle Aged; D011594:Psychometrics; D011788:Quality of Life; D012649:Self Concept; D012647:Self-Assessment; D018434:Sickness Impact Profile; D011795:Surveys and Questionnaires / Q000592:standards*