Another piece of design researcher jargon. Give participants a tool/structure for recording (i.e., self-reporting) their attitudes or behavior over time. Interesting to finally track down a piece of jargon and find that it’s just another name for something you already know.
Defined by Hilary Hutchinson (now at Google) in a 2003 CHI paper. Similar to a cultural probe but is targeted at the interaction between the users and technology. Seems like a working prototype that is useful for how it may enable new behaviors (rather than strictly evaluating the design of the artifact itself)