TY  - JOUR
T1  - Modeling direction and intensity in semantically balanced ordinal scales: An assessment of congressional incumbent approval
AU  - Jones, Bradford S.
AU  - Sobel, Michael E.
PY  - 2000
SP  - 174
EP  - 185
JO  - American Journal of Political Science
VL  - 44
IS  - 1
SN  - 0092-5853
UR  - http://www.jstor.org/stable/2669302
ER  -