Political knowledge is one of the central variables in research on mass pol
itical behavior, but insufficient attention has been given to the implicati
ons of alternate approaches to the measurement of political knowledge. Two
issues are considered here: (1) survey protocol regarding "don't know" resp
onses and (2) item format. Data from the 1998 NES Pilot and a survey conduc
ted in the Tallahassee metropolitan area are used to assess alternate surve
y protocols.