Severe vs. nonsevere firesetters revisited.

The study reported here compares a group of 75 severe firesetters with a group of 105 nonfiresetters and minor firesetters along 32 variables that have been positively correlated with juvenile firesetting behavior. A chisquare analysis of the data revealed that the frequencies observed in the 75 "severe" cases differ significantly from those in the "nonsevere" group. A prediction equation was derived from the 14 most salient variables. This equation can be used to differentiate severe/high-risk from minor/low-risk firesetters 95% of the time.