Principlev1
Use momentary sampling methods rather than retrospective
Use momentary sampling methods rather than retrospective recall to capture actual behavioral patterns and avoid memory reconstruction biases.
Why This Is a Principle
Derives from Memory is reconstructive, not reproductive—humans rebuild (memory is reconstructive not reproductive) and Human memory of task duration is systematically biased and (memory of task duration is systematically biased). The EMA research cited shows real-time sampling captures dynamics that retrospective questionnaires miss. The hourly-timer protocol implements this principle.