Data from 23 studies confirm theoretical predictions that households' adopt
ion of earthquake hazard adjustments is correlated with their perceptions o
f the hazard and alternative adjustments, demographic characteristics, and
social influences. However, some findings require modification of existing
theories of hazard adjustment. Examination of the methods used in previous
investigations underscores a need for better theories, more complete testin
g of existing theories, and improved data analytic and data reporting proce
dures in future tests of those theories.