Date

2022-01-20

Protocol

Protocol changed

Item Changed

Primary outcome(s)

Previous Version

1.1.Change in mean score of knowledge related to healthy eating (https://doi.org/10.1080/19325037.2011.10599198) and physical activity (using a questionnaire developed in-house). [At two time points. For the intervention group participants: immediately before watching the first video and one week after watching the last (fourth) video. For the control group participants: parallel to the intervention group participants. ] 2.Change in mean score of attitudes related to healthy eating (https://doi.org/https://doi.org/10.1016/j.appet.2012.11.021 and items developed in-house) and physical activity (https://doi.org/10.1080/08870440108405515) [At two time points. For the intervention group participants: immediately before watching the first video and one week after watching the last (fourth) video. For the control group participants: parallel to the intervention group participants. ] 3.Change in mean score of intention related to healthy eating (https://doi.org/https://doi.org/10.1016/j.appet.2012.11.021 and items developed in-house) and physical activity (https://doi.org/10.1080/08870440108405515) [At two time points. For the intervention group participants: immediately before watching the first video and one week after watching the last (fourth) video. For the control group participants: parallel to the intervention group participants. ] 4.Change in mean score of subjective norms related to healthy eating (https://doi.org/https://doi.org/10.1016/j.appet.2012.11.021 and items developed in-house) and physical activity (https://doi.org/10.1080/08870440108405515). [At two time points. For the intervention group participants: immediately before watching the first video and one week after watching the last (fourth) video. For the control group participants: parallel to the intervention group participants. ] 5.Change in mean score of perceived behavioral control related to healthy eating (https://doi.org/https://doi.org/10.1016/j.appet.2012.11.021 and items developed in-house) and physical activity (https://doi.org/10.1080/08870440108405515) [At two time points. For the intervention group participants: immediately before watching the first video and one week after watching the last (fourth) video. For the control group participants: parallel to the intervention group participants. ]

Next Version

1. Change in mean score of knowledge related to healthy eating (https://doi.org/10.1080/19325037.2011.10599198) and physical activity (using a questionnaire developed in-house). [At two time points. For the intervention group participants: immediately before watching the first video and immediately one week after watching the last (fourth) video. For the control group participants: parallel to the intervention group participants.]