Also known as: gratitude journal, thankfulness practice
Latest evidence update: 2025-11-01
Strongest in Consistency (83). Held back by Recency (46).
Solid mix of RCTs with some methodological gaps.
Good cross-study replication, some imprecision.
Tens of thousands of participants pooled across studies.
Studies agree on direction of effect.
Evidence base skews older; field may have moved on.
No per-outcome numbers yet for this one. Each finding's direction and strength is shown in the research below.
Areas where research points to a consistent direction of effect. The strength of evidence is graded; the size of the effect is not quantified.
Deliberately noting things you're grateful for. Consistent evidence for improved mood and life satisfaction.
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Randomized controlled trial designs show greater effectiveness of gratitude interventions compared to non-randomized designs.
Positive psychology interventions (PPIs) produced consistently positive effects on subjective wellbeing, life satisfaction, and positive affect, with mean Cohen's d ranging from 0.29 to 0.47.
A 12-day online gratitude journaling intervention significantly increased work engagement in Japanese employees, particularly in the absorption dimension.
Gratitude intervention significantly increased gratitude questionnaire (GQ-6) scores in newly recruited nurses compared to control group immediately after intervention and at 3 months follow-up.
Not all types of 'good things' listed in the gratitude intervention improved well-being outcomes; content specificity matters for efficacy.