🚀 go-pugleaf

Robert George of The OSU Statistics Department writes:
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| One approach on how to conduct these surveys is to not permit
| 'nonresponse' while still preserving privacy:
| Interview the respondents face-to-face. Ask them to 
| think of a number between 1 and 10. Then say,
| "If the number is even, answer the question 'Are you happy?'.
| If the number is odd, just say 'No'"
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The problem with this approach is that about 29% of people think of
'7' and 11% think of '3'. (See Kubovy, M., & Psotka, J. (1976). The
predominance of seven and the apparent spontaneity of numerical
choices. Journal of Experimental Psychology: Human Perception &
Performance, 2, 291-294.) Better use the last digit of the
respondent's social security number.
--
|\  /| / MICHAEL KUBOVY (kubovy@virginia.edu)
| \/ |/		OFFICE: 804-982-4729; LAB: 982-4751; FAX: 982-4766
|    |\ 	   Department of Psychology, Gilmer Hall,
|    | \ 	   Univ. of Virginia, Charlottesville, VA 22903-2477