2026-10-15T08:02:34Z https://datacatalogue.cessda.eu/oai-pmh/v0/oai

5ac7c047c0fd010363a2f75a9e7a693dcfdaca3be4e92e429338236b1c5916c5 2026-06-02T13:17:19Z language:nlopenaire_data

doi:10.17026/SS/ORYLKM https://doi.org/10.17026/SS/ORYLKM Data of a randomized controlled trial of the Happy Lessons program: a school-based program to prevent depressive symptoms and strengthen well-being among Dutch pre-vocational students Rombouts, MariekeMonshouwer, KarinDuinhof, EliseKraiss, JannisShields-Zeeman, LauraKleinjan, Marloes This pilot randomized controlled trial (RCT) investigates the effectiveness of Happy Lessons (HL). This school-based program aims to prevent depression symptoms and enhance well-being among Dutch pre-vocational students. Classes within schools were randomized to intervention group (n = 124) or waitlist control group (n = 143). Students (n = 267, aged 11 to 15) completed questionnaires at baseline, 3- and 6-months follow-up. See the study protocol paper for a description of the data collection and collected variables. Study protocol: Rombouts, M., Duinhof, E. L., Kleinjan, M., Kraiss, J. T., Shields-Zeeman, L., & Monshouwer, K. (2022). A school-based program to prevent depressive symptoms and strengthen well-being among pre-vocational students (Happy Lessons): protocol for a cluster randomized controlled trial and implementation study. BMC public health, 22(1), 139. STUDENTSDEPRESSIONHAPPINESSMENTAL HEALTHMedicine, Health and Life SciencesSocial Sciencesschool-based programhappystudents nl Dataset https://ssh.datastations.nl/oai doi:10.17026/SS/ORYLKM 2025-09-26T12:02:13Z ddi:codebook:2_5