The study examines the effect of a prior tornado disaster occurring in a community and that community's current response to a tornado threat. The study concludes that it is not past experience with tornadoes that relates to response to warnings, but rather awareness. Experience is but one source of information contributing to their awareness. (RE)

To test the hypothesis that residents of larger cities are less helpful to strangers than are residents of small towns, three New Zealand towns with varying population densities were studied for helping behavior. The research confirms that population density is a reliable predictor of non-helping behavior. (RE)