Data on reporting behavior were obtained from a survey of mandated reports; this survey also included vignettes that measured reporting intentions. Data on child protective agency responses were collected in the course of semistructured field interviews in selected child protective agencies. The survey was mailed in spring 1987 to general and family practitioners, pediatricians, child psychiatrists, clinical psychologists, and social workers in 15 States. The response rate was 59 percent. An expanded and integrated model of reporting intentions that included both reporter variables and case characteristics revealed that case characteristics were substantially more important in predicting reporting intentions than reporting variables. Still, reporter characteristics explained a significant amount of the variance shown in these equations. This report concludes that the lack of child abuse reporting knowledge and training is associated with consistent failure to report suspected child maltreatment. More training may increase the likelihood that mandated reporters, particularly those who have never reported, will recognize and report abuse. 16 tables and appended questionnaire