A survey printed on AAFP stationery was mailed to a random sample of 2,000 active members of the AAFP in November 2006. The members were asked a series of aided and unaided recall questions. There were 215 usable responses, for a response rate of 11 percent.
As in the previous 13 studies, no incentive, prompting or assistance was offered. Any degree of bias, either implied or inherent, is associated solely with the fact that the survey was conducted by the AAFP for its members.
Except where noted, percentages have been adjusted to include only those respondents who answered a specific question. Due to rounding error, the sum of percentages may not always be 100 percent.
