Research paper · RP03

Does Tracking Change the Thing Tracked?

Working adults now log mood the way runners log kilometres. The question is whether the log itself moves the mood. Fewer than five eligible randomised trials compared mood or emotion self-monitoring alone with a no-monitoring control in adults, so a pooled Hedges g cannot yet be computed; the narrative direction across the closest trials is near-null for mean mood and symptoms. We searched PubMed, PsycINFO, Scopus, Web of Science, Google Scholar, CTRI, ClinicalTrials.gov and OSF from 1995 to 2026 for randomised or controlled studies in which adults completed mood or emotion diaries, ecological momentary assessment or app check-ins with no other active component. Primary outcomes were mood, affect, wellbeing or symptoms at the end of the monitoring period. Pre-specified moderators were logging frequency, prompt valence and whether feedback was shown. Two trials supplied a true no-monitoring contrast. In 184 recently bereaved Dutch adults, five daily grief-reaction check-ins for two weeks did not change group-level depression, trauma or grief scores versus waitlist. In 124 Hong Kong women with mild-to-moderate symptoms, six weeks of experience sampling alone produced a depression-anxiety-stress decline comparable to no extra programme; only the arm that added personalised feedback beat control. Frequency-manipulation studies without a no-monitoring arm mostly found no mean change in pleasant-unpleasant mood. Positive-only happiness prompts were an exception in one student sample: people already high in depressive symptoms or neuroticism felt worse when asked about happiness six times a day. Emotional clarity and emotion differentiation sometimes rose even when mood level did not. This is not the same phenomenon as initial elevation bias, which inflates the first report of a negative state and then settles. Certainty is low. No Indian randomised trial of logging-only versus no-monitoring in working adults was found. For an Indian workplace programme the practical reading is simple. A daily mood rep is a thermometer, not a workout. Pair the log with a next action, keep the prompt valence-neutral, and do not sell the check-in as if it were the coaching.