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A qualitative exploration of online public commitment

10 July 2020

The purpose of the study is to gain a deeper understanding of online public commitment in relation to weight loss, physical activity and dieting goal setting. Online public commitment is defined as the public declaration of a goal to change weight-related behaviour and using the internet as a platform. A typical example is someone posting an update on his or her Facebook that he or she wants to lose weight 3 stones within 6 months.


  • • You are aged 18 or above
  • • You have previously made an online public declaration which included the following: (1) To either be more physically active, eat healthily or lose weight. (2) Your online declaration could either be very specific (e.g. saying you are going to drink 2 litres of water every day) or more general (e.g. saying you are on a quest to eat more healthily). (3) You made this declaration using the internet as a medium (e.g. Facebook posting to friends, blogging, joining online support groups, tweeting etc).
  • • You are willing to participate in a semi-structured, virtual audio-recorded interview lasting 45 minutes to 1 hour.

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