Because of the manner in which the names were selected several of the instruments were returned
due to insufficient addresses. There were also several respondents who chose not to complete the
instrument because they did not feel their present assignment allowed them to provide valid input.
In January 1995 a follow-up survey was mailed to nonrespondents. Individuals who did not receive
the survey or did not complete the survey were replaced with additional names taken from the 1994
NSTA Convention Program. Returns on the follow-up survey were collected until July 1, 1995.