Abstract: A survey confidence system is described that improves the quality of responses through electronic surveys by scoring participant responses using confidence metrics. The system assigns a score to actions taken by the participant that potentially indicate fraud, falsification, or duplication and uses the score to eliminate responses that do not reach a threshold level of confidence, or to weight such responses lower than other higher confidence responses. The system defines a series of axes that the system combines to form an overall confidence score. Each axis represents a particular domain about which the system can determine and assign some level of confidence. The system can inject questions into a survey that verify information that does not change, seldom changes, often changes, or changes according to a recognized pattern. Thus, the system allows the benefits and reduced cost of electronic surveys while increasing confidence in responses to ensure trustworthy results.