Reliability of self-reported childhood physical abuse by adults and factors predictive of inconsistent reporting.

Little is known about the reliability of self-reported child physical abuse (CPA) or CPA reporting practices. We estimated reliability and prevalence of self-reported CPA and identified factors predictive of inconsistent CPA reporting among 2,256 participants using surveys administered in 1995 and 2000. Reliability of CPA was fair to moderate (kappa = 0.41). Using a positive report from either survey, the prevalence of moderate (61.8%) and severe (12.0%) CPA was higher than at either survey alone. Compared to consistent reporters of having experienced CPA, inconsistent reporters were less likely to be > or = 30 years old (vs. 18-29) or Black (vs. White) and more likely to have < 12 years of education (vs. 12), have no alcohol-related problems (vs. having problems), or report one type (vs. > or = 2) of CPA. These findings may assist researchers conducting and interpreting studies of CPA.