This research updates and extends John Crittenden's effort to identify
the dimensions of modernization among the U.S. states. The objective
is to determine the degree of continuity or change in the structure of
modernization between 1960 and 1990. We undertake a principal-axis fa
ctor analysis of the same thirty-three variables Crittenden employed i
n his analysis of state modernization. In addition to comparing the re
sults of factor analyses for the two periods, we offer an index of sla
te modernization for 1990. The outcome of the 1990 factor analysis par
allels the structure identified for the earlier period. Four primary f
actors emerge-metro-urbanism: Migratory Pull, Political Participation
(Integrative Message Exchange for 1960), and Decentralization (new for
1990). The overall index of state modernization shows New York, Calif
ornia, New Jersey, Connecticut, and Colorado as the most developed sta
tes.