time to dissatisfied customer farrokh alemi, ph.d. october 2006
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Time to Dissatisfied Customer
Farrokh Alemi, Ph.D.October 2006
Wasteful Surveys
• Too much money spent on too many surveys• Too many patients asked to participate• Too much time taken
Wasteful Surveys
• Too much money spent on too many surveys• Too many patients asked to participate• Too much time taken
Two Stage Sampling
1. Sampled patients are asked one question2. Patients with extreme responses are asked
to give reasons
First Question
• Were you satisfied with your care?• Delighted, exceeded my expectations• Satisfied• Not sure• Dissatisfied• Did not meet my minimum expectations
Asked from a random sample of patients
One Question Survey
Less burden on the patientsImproved response rate
Same Results with Less Data
Time to Dissatisfied Customers
0
1
2
3
4
1 2 3 4 5 6 7 8 9 10 11 12 13
Consecutive Visits
Num
ber o
f Pat
ient
s D
issa
tisfie
d
Upper Control Limit
Same Results with Less Data
Time to Exceeding Expectations
0
1
2
3
4
1 2 3 4 5 6 7 8 9 10 11 12 13
Consecutive Visits
Num
ber o
f Pat
ient
s D
elig
hted Upper Control Limit
Second Survey Provides Reasons for Dissatisfaction
Not only whether the process is changing but also why is it changing
Second Survey
• Check who was involved?
Physicians Nurses Food and dietary X-ray and laboratory Other, please specify:
• Tell us what went wrong? What worked well?
Asked from only those whose expectations we have exceeded or whose minimum expectations we have
not met
One Question Survey
Less cost to the organization
Cost per 100 Responses
Number of people surveyed
First survey
Second survey
Response rate
Cost per 100
Responses
Traditional approach 100 0 30 5000
Proposed approach 100 5 85 441
$15 per survey
$3 per postcard
$15 per survey
Take Home Lesson
Time to dissatisfied customer monitors if changes have led to improvement and saves time & money
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