Longitudinal RWA follow-ups achieve 64 percent response rates after eighteen years

Evidence

On May 2, 1994, I repeated this alumni study, sending out surveys to 138 Manitoba graduates who had served in a study I ran in September 1976— nearly eighteen years earlier.* Three of these were returned by the postal service as undeliverable. By June 7, when I mailed the feedback letters, I had received completed surveys from 87 alumni. This response rate of 64% slightly bettered that obtained in the first alumni study. As in 1986, one of the alumni exercised an option to remove the survey number from the questionnaire, reducing the sample available for longitudinal analysis to 86. — Bob Altemeyer, The Authoritarian Specter, 1118