[R] Effects of rounding on regression

Peter Flom flom at ndri.org
Sat Nov 8 16:25:01 CET 2003

Does anyone know of research on the effects of rounding on regression?

e.g., when you ask people "How often have you _______?" you are more
likely to get answers like 100, 200, etc. than 98, 203, etc.

I'm interested in investigating this, but don't want to reinvent the



Peter L. Flom, PhD
Assistant Director, Statistics and Data Analysis Core
Center for Drug Use and HIV Research
National Development and Research Institutes
71 W. 23rd St
New York, NY 10010
(212) 845-4485 (voice)
(917) 438-0894 (fax)

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