Small Group Exercise: Measurement

1
Small Group ExerciseMeasurement

• Roberto Castano, Monica Floricel, Susie Lau,
  Zubin Punthakee
• October 6, 2003

2
Construction of a scale of measuring inpatients
opinion on quality of care

• L Salomon et al. International Journal for
  Quality in Health Care 1999 Vol 11, Number 6
  pp 507-516

3
What is the measurement being studied?

• Self-administered questionnaire of a 26-item
  scale on patients opinions on quality of
  hospital care

4
What is the poposed use of the measurement?

• To measure inpatients evaluation of care
  suitable for large-scale department evaluation in
  France

5
What is the research question?

• What is the appropriate content of a reliable and
  valid questionnaire to assess inpatients opinion
  of the quality of hospital care?

6
What aspect of the validity or reliability of the
measurement is being studied?

• Reliability
• internal consistency
• test-retest
• alternate form

7
What aspect of the validity or reliability of the
measurement is being studied?

• Validity
• construct
• criterion validity (concurrent)
• content and face

8
Are the study design and methods appropriate for
the research question?

• Yes
• used qualitative methods to select relevant items
• used quantitative methods to assess reliability
  and validity

9
What are the main sources of bias in the study?

• Social desirability
• Selection bias
• Information bias

10
Have the investigators answered their research
question?

• Yes

11
What are the implications of the results how
could the study measure be used?

• Research
• to validate other questionnaires of patient
  satisfaction
• Clinical
• to assess quality of care in lg depts to assess
  adequacy of resource allocation within and btn
  depts, evaluation of patient-care staff, assess
  interventions that could improve satisfaction

12
Is more research on the measurement itself needed?

• Yes
• To assess generalizability to
• children
• English/French
• To assess responsiveness of measurement