Survey Estimates of Church Attendance Based on Self-Reports Are Very

Multiple Choice

Survey estimates of church attendance based on self-reports are very stable, as respondents tend to give consistent answers. Observations of church attendance indicate, however, that it is about one-half the level reported in surveys. This suggests that, as a measure of church attendance, self-reported attendance is

A) reliable but not valid.
B) valid but not reliable.
C) neither reliable nor valid.
D) both reliable and valid.