What are the basic assumptions underlying self-report measurement? When are self-report methods most/least appropriate?
The basic assumptions underlying self-report measurement are that (1) the person is honest and willing to provide accurate information; (2) the person has a clear understanding of the question being asked;(3) the response options given accurately reflect what they mean in terms of behavior, opinion, or belief. Self-report methods are most appropriate when measuring subjective experiences like attitudes, beliefs, values, opinions, and behaviors.
However, they may be less appropriate for more complex issues such as mental health problems or risky behaviors. Additionally, caution should be taken if there is an incentive to respond in a particular way or if the respondent may be unfamiliar with certain topics due to lack of experience or education.