Criminal opportunity theories identify four basic constructs that are centr
al to models of victimization: proximity, exposure, victim attractiveness,
and guardianship. Proximity was controlled, allowing the examination of the
potential effects of exposure, victim attractiveness, and guardianship in
more derail. Discrete-time event history models were used to estimate the c
ontemporary-time predictors of personal victimization and the time-lagged e
ffect of prior victimization from a five-wave longitudinal study of street
youths. The study found strong support for exposure hypotheses with increas
ed victimization risk associated with time an the streets, substance abuse,
and affiliation with deviant peers. Selected indicators of victim attracti
veness and guardianship hypotheses were significant but, overall, the suppo
rt for these two dimensions was more limited Prior victimization was associ
ated with approximately a 2.5 times increase in the odds of subsequent vict
imization. This study suggests several interpretations of this effect and i
t argues for additional situation-specific research to provide further elab
oration of victimization theories.