Industry Survey
Respondent Cooperation Audit
This article is reproduced with permission from the Council for Marketing and Opinion Research (CMOR). It appeared in the October 1998 issue of CMOR Industry Watch. CMOR was established to protect the value that marketing and opinion research represents to the public and industry. CMOR accomplishes this by: influencing legislation and regulations for the protection of the marketing and opinion research process; preventing passage of restrictive legislation while working to balance the need for information against the right of individual privacy; and promoting internal research practices to encourage respondent cooperation and self regulation. For more information, contact CMOR at 516/928-6206 or info@cmor.org.
In early 1997 CMOR undertook a project to update refusal rate information. Forty CMOR and Council of American Survey Research Organizations (CASRO) member firms were recruited to keep track of all their phone research for the month of April 1997. This yielded 385 surveys with a total base of 243,597 interviews for which we had sample disposition data and some basic facts provided about subject matter or purposse of the survey, length of interview, client identification, type of sample, and use of incentives.
Refusal Rate
Refusal rate was calculated using the industsry-accepted definition as follows:
Refusal Rate = (Total Refused) / (Total Contacts)
Total Refused = Initial Refusals + Breakoffs + Qualified Refusals
Total Contacted = Total Refused + Eligible Resp. Not Available + Language Barrier + Completed Interview
Preliminary Findings
- Phone refusal rates have gone up from 40% in a 1988 Your Opinion Counts project to 46% in this study.
|
- The 58% refusal rate generated in the 1995 CMOR study, while higher than the overall rate we determined from this study, was confirmed at 58% when compared to the 24 comparable studies from this audit. (Those done with the general public, RDD sample, 10 to 20 minute interview, no disclosure of interview length, no incentive.)
|
- It's no surprise that keeping the interview length short improves cooperation.
|
|
Interview |
Refusal Rate |
|
5 minutes or less |
32% |
|
10 minutes |
45% |
|
15 minutes |
46% |
|
20 minutes |
56% |
|
Over 20 minutes |
57% |
|
- Disclosing the length of the interview in the introductions seems to improve cooperataion regardless of the length of the interview (the base sizes for disclosed are small).
|
|
|
Refusal Rate |
|
|
Interview |
Length Disclosed |
Length Not Disclosed |
|
5 minutes or less |
18% |
38% |
|
6-10 minutes |
35% |
46% |
|
11-15 minutes |
41% |
47% |
|
16 minutes or more |
42% |
55% |
|
- Honest disclosure of facts during the interview introduction has a positive effect on cooperation.
|
|
Refusal Rate |
|
Interview Length Disclosed |
34% |
|
Length Not Disclosed |
52% |
|
|
|
|
|
Client Identified |
29% |
|
Client Not Identified |
54% |
|
|
|
|
|
Subject Matter Disclosed |
43% |
|
Subject Not Disclosed |
61% |
|
- However, providing reassurance in the interview introduction of what this survey is not did not appear to improve cooperation.
|
|
Refusal Rate |
|
Not a Sales Attempt |
51% |
|
No Mention of Sales |
43% |
|
|
|
|
|
Responses Confidential |
48% |
|
Confidentiality Not Mentioned |
46% |
|
Back to Sawtooth News Index |