TY  - JOUR
T1  - What Do Open-Ended Questions Measure?
AU  - Geer, John G.
PY  - 1988
DO  - 10.1086/269113
SP  - 365
EP  - 371
JO  - Public Opinion Quarterly
VL  - 52
IS  - 3
SN  - 0033-362X
ER  -