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					Evaluating Filter Questions Used for the
Participation & Activity Limitation Survey




David Lawrence
Questionnaire Design Resource Centre
Statistics Canada
QUEST 2007
Overview
   PALS background

   Rationale for study

   Population of interest

   Findings & Observations

   What now
    PALS Background

   National post-censal survey

   Target: Canadian adults & children whose everyday
    activities may be limited due to a health-related
    condition or problem

   Conducted 4 times: 1986, 1991, 2001 & 2006

   Census filter questions used to create a sampling
    frame.
Rationale for Study
   On-going initiative to improve efficiencies in the
    collection of social statistical data

   Review of many social concepts towards harmonizing
    various questions included on social surveys.

   Activity limitation questions are a part of this review.

   Evaluate the performance of the filter questions
Population of Interest
Two specific areas of interest:

   ‘False positive’ respondents

   Respondents having ‘soft’ conditions.
    Methodology
   57 cognitive interviews with PALS respondents

   Interviews conducted at focus group facilities

   Four test sites

   Participants: - False positive adults
                  - False positive children
                  - Adult respondents having a ‘soft’ condition
                  - Child respondents having a ‘soft’ condition
Specific Objectives
Explore:

   comprehension of filter questions
    -  question intent
    -  meaning of terms

   reporting issues related to “soft” conditions

   potential structural problems with questions
Census Filter Question

Do you have any difficulty hearing, seeing,
communicating, walking, climbing stairs,
bending, learning or doing any similar
activities?
О   Yes, sometimes
О   Yes, often
О   No
Canadian Community Health Survey
The next few questions deal with any current
limitations in your daily activities caused by a
long-term health condition or problem. In these
questions a long-term condition refers to a
condition that is expected to last or has already
lasted 6 months or more.

Do you have any difficulty hearing, seeing,
communicating, walking, climbing stairs,
bending, learning or doing any similar activities?
О Yes, sometimes
О Yes, often
О No
Activity Reduction Questions
Does a physical condition or mental condition or health
problem reduce the amount or kind of activity you can
do:

...   at home?
…     at work or school?
…     in other activities for example, transportation or
      leisure?

      Yes, sometimes
      Yes, often
      No
Findings & Observations

   Question context

   Question location

   Terminology



   Mode

   Proxy vs. non-proxy response
What Now?
   ‘No’ sample (False negatives) … May 2007

   Further evaluation … quantitative study?

   Address issues pertaining to harmonization …

				
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