Measure to close the feedback loop

Record the behavior so you see what you are actually doing, not what you assume.

Why it works

People systematically misjudge their own consistency, remembering intentions as actions. Recording each instance replaces that biased memory with accurate data, and the discrepancy between the goal and the record itself motivates correction. The feedback loop — observe, compare, adjust — is the core mechanism by which monitoring changes behavior.

How to do it

1. Track the single metric that best represents the behavior, not a dozen at once.
2. Record at the moment of action, not from memory at day's end.
3. Review the record regularly and adjust the plan where the data disagrees with your assumptions.

Evidence

A meta-analysis of progress monitoring found that prompting people to monitor their goal progress reliably increased the rate of goal attainment, with larger effects when progress was physically recorded or made public. (rct)

Monitoring helps for most goals, but for some sensitive behaviors (e.g. weight) frequent tracking can raise anxiety; match the metric and cadence to the person.

Sources

• Harkin et al. (2016), meta-analysis of progress monitoring interventions, Psychological Bulletin

Common mistake

Tracking from memory at the end of the week, which reintroduces exactly the bias the record was supposed to remove.