THE THESAURUS, DEVELOPED FOR INFORMATION CLEARINGHOUSE OF THE NATIONAL CENTER ON CHILD ABUSE AND NEGLECT, IS USED FOR INDEXING COMPUTER-BASED DATA. AS SUCH, IT SERVES AS THE AUTHORITATIVE GUIDE TO SPELLING AND TERM USE, RESOLVES QUESTIONS OF SYNONYMOUS TERMS, AND PROVIDES FOR CONSISTENT USE OF WORD FORMS. IN ADDITION, THE THESAURUS REFERENCES RELATED AND BROADER AND NARROWER TERMS. IN ADDITION TO THE ALPHABETIC LISTING OF TERMS, IT CONTAINS A PERMUTED DISPLAYS, WHICH EXTRACTS THE SIGNIFICANT WORDS IN EACH DESCRIPTOR AND DISPLAYS THEM ALPHABETICALLY TOGETHER WITH THE ENTIRE DESCRIPTOR THIS ALLOWS THE USER TO SEE ALL USAGES OF A WORD WITHOUT REGARD TO ITS POSITION IN A PHRASE OR MULTIWORD DESCRIPTOR. THE DISPLAY CAN ALSO SUGGEST RELATED DESCRIPTORS OR DESCRIPTORS OF LIKE OR SIMILAR DERIVATION. A THIRD SECTION, THE DESCRIPTOR GROUP, ARRANGES ALL TERMS UNDER BROAD SUBJECT AREAS -- ABUSE AND NEGLECT, AGENCIES AND ORGANIZATION, BEHAVIOR, DEMOGRAPHY, ECONOMICS, EDUCATION, MEDICINE, AND THE LIKE. THE SUBJECT RANGES OF THE 20 DESCRIPTOR GROUPS ARE OUTLINED AND A DESCRIPTOR REVIEW FORM IS INCLUDED. (GLR)