IRCT20180427039436N8 IRCT 2020-11-03 Iran University of Medical Sciences Immunization education to parents with children under one year old Comparison of the effect of immunization education by two methods of lecture and movie to parents on delay of vaccination in children under 12 months 2020-12-05 anticipated 366 Complete https://irct.ir/trial/51188 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Education/Guidance, Randomization description: In this study, at first, with a simple random coin toss method, one of the centers is considered as intervention group 1 (film vaccination training) and the other center is considered as intervention group 2 (lecture vaccination training) and Of the four bases in the same way, two bases are in group 1 and the other two bases are in group 2. N/A Vaccination education in two ways: lectures and videos. Intervention 1: Intervention group: Intervention group: The first intervention (vaccination training by video method) Training the content of the intervention in the form of 15-20 minute educational video based on Meyer multimedia principles and in the form of image, audio file with image (podcast) and video in MPEG format 4. (MP4), in small groups of 5 to 8 people and will be done in accordance with health protocols and social distance. Intervention 2: Intervention group: The second intervention (lecture training) is designed as a training session with a duration of 15-20 minutes for eligible parents in the form of lectures and in small groups of 5 to 8 people and in accordance with the protocol Health and social distancing will be done. No - There is not a plan to make this available Justification or reason for not sharing IPD is No more information.