TY - JOUR T1 - Does theoretical basis, use of behaviour change techniques, and mode of delivery influence the efficacy of internet-based interventions? A meta-analysis JO - PSYCHOLOGY & HEALTH PY - 2010/08/01 AU - Webb TL AU - Joseph J AU - Yardley L AU - Michie S ED - VL - 25 SP - 131 EP - 131 Y2 - 2024/09/19 ER -