Posted by
statisticsdoc on
Sep 01, 2006; 8:04pm
URL: http://spssx-discussion.165.s1.nabble.com/change-of-perceptions-tp1070707p1070708.html
Stephen Brand
www.statisticsdoc.com
Veena,
Since you have continuous age data, consider a scattergram of age versus the
Likert scale. Consider the possibility that the relationship may involve
more than one turning point, and that the variation in the Likert scale may
be greater or lesser at certain age ranges.
Another option would be to categorize age in 5 year increments and look at
the mean AND the standard deviation of the Likert items. I suggest standard
deviation because sometimes distributions as well as central tendency change
with age.
HTH,
Stephen Brand
For personalized and professional consultation in statistics and research
design, visit
www.statisticsdoc.com
-----Original Message-----
From: SPSSX(r) Discussion [mailto:
[hidden email]]On Behalf Of
DR VEENA Joshi
Sent: Friday, September 01, 2006 5:22 AM
To:
[hidden email]
Subject: change of perceptions
Hi,
We have done a survey on perceptions about healthcare system using
likert scale (1 to 5). One of the demographic variable is age which is
continuous.
I categorized age into 3 groups <40, 40 - 60 and >60 and found that
respondents perceptions/attitude differ age groupwise.
I would like to find the truning point at which the difference exists.
How do I get this?
I am trying to get small age groups say 5 years, but the age ranges
from 18 to 90 years.
pl. advice.
veena