The source monitoring (SM) framework is an evolving set of ideas developed by Marcia Johnson and her collaborators regarding the cognitive processes by which individuals attribute mental events (thoughts, images, feelings) to particular origins (e.g., memory, perception, creativity, etc.). Most of the research motivated by the SM framework has had to do with how people identify the specific sources of mental events that they experience as episodic memories (e.g., how a witness differentiates between memories of a crime vs. memories of a cowitness's descriptions of that crime). “Source” is a multidimensional construct that includes (a) the environmental context in which a past event occurred (e.g., Did X happen at work or at home?), (b) an event's temporal context (e.g., Did X happen yesterday or last ...