TY  - JOUR
T1  - Issues in Measurement: The 'Levels of Conceptualization' Index of Ideological Sophistication
AU  - Cassel, Carol A.
PY  - 1984
SP  - 418
EP  - 429
JO  - American Journal of Political Science
VL  - 28
IS  - 2
SN  - 0092-5853
UR  - http://www.jstor.org/stable/2110880
ER  -