The CSBI is a parent report (mother or primary female caregiver) measure of sexual behaviour in children. It is intended for use with children who have been or who may have been sexually abused. The test was developed in response to evidence that sexual abuse is related to the presence of precocious sexual behaviour in children. To fully understand each child and ensure his or her safety, it is essential that the CSBI be used in combination with other clinical measures and procedures. The CSBI test booklet contains 38 items assessing a wide range of sexual behaviours that cover nine major content domains: Boundary Issues, Sexual Interest, Exhibitionism, Sexual Intrusiveness, Gender Role Behavior, Sexual Knowledge, and Self-Stimulation, Voyeuristic Behavior and Sexual Anxiety. The 38 items are written at a 5th-grade reading level. The mother (or primary female caregiver) writes directly in the Test Booklet, indicating how often she has observed each of the listed behaviours during the preceding six months. Each item is rated on a 4-point scale from 0 (never) to 4 (at least once a week). The carbonless form is designed to be hand-scored by the examiner and includes a Score Summary box for recording raw scores and T-score conversions.