“…The wealth of bystander literature, developed from the cornerstone study by Darley and LatanC (1 968), was reviewed to identify possible variables predictive of intervention in child abuse. Investigations have identified some important situationalfactors: the presence of other witnesses (Curtis, 1974;Morgan, 1978), bystander's relationship to other witnesses (Gottlieb & Carver, 1980;Grofman, 1974), ambiguity of the demand situation (Borges & Penta, 1977;Ellsworth & Langer, 1976;Mason & Allen, 1976;Piliavin & Piliavin, 1972;Piliavin, Piliavin, & Broll, 1976;Solomon, Solomon, & Stone, 1978;Warner, 1976;West & Brown, 1975), and the setting and type of demand situation (Harari, Harari, & White, 1985;Schreiber, 1979;Shotland & Stebbins, 1980).…”