Effects of Differential Enhancements on Mail Response Rates
Rebecca McPhetersMcPheters & Company andJerry KossoffBeta Research
Following the attacks that occurred on September 11, 2001 and the subsequent anthrax scares, Beta Research and McPheters & Company entered into testing various methods to lift respondent confidence in the validity of the survey instrument and, hence, improve response rates. The first test involved an 8-cell design that looked at the effects of various combinations of variables on response rates to mail surveys. The second involved use of a telephone prerecruit to obtain consent to fill out the same mail...