Investigated whether source-monitoring training would decrease 3- to 4-year-olds' suggestibility. After observing live or video target-events, children received source-monitoring or recognition (control) training. Found that children given source-monitoring training were more accurate than control group children in response to misleading and nonmisleading yes-no questions and nonmisleading open-ended questions. Examined implications for strategy development, dual representation, and child witness interviewing. (Author/KB)