Given the value placed on honesty and the negative consequences of lying, encouraging children's truth-telling is important. The present investigation assessed honesty promotion techniques for encouraging 3-8-year-old Canadian children's (Study 1: n = 301, 54% female; Study 2: n = 229, 50% female from predominantly White middle-class samples) disclosure of a transgression and whether they varied by age. Study 1 examined promising to tell the truth, inducing self-awareness, and the combination of both promising and self-awareness. Study 2 assessed modeling honesty, positive consequences of honesty, and the combination of modeling and consequences. Some individual techniques worked for specific age groups: Self-awareness only increased 3-4-year-olds' and promising only increased 7-8-year-olds' honesty. However, the combination of modeling and consequences increased honesty for all age groups. Findings suggest that different motivational factors may encourage children's honesty across childhood. (PsycInfo Database Record (c) 2024 APA, all rights reserved).