Evidence and Impact

Zippy’s Friends has been recognised as an effective programme by:

Impact logos

Our programmes are based on scientific evidence which show that they work. Zippy’s Friends has been evaluated through a number of randomised control trials (RCTs) – the ‘gold standard’ of research – in a variety of cultures. Several reports of the results have been published as articles in peer-reviewed journals. 


The results from the evaluation studies have been remarkably consistent, and have shown:

  • Increased coping skills
  • Better social skills
  • Increased emotional literacy
  • Improved class climate
  • Less bullying

Major studies

RCTs and quasi-experimental evaluations of Zippy’s Friends and Apple’s Friends have been carried out in Denmark, Lithuania, Ireland, Norway, the Netherlands, the UK and Czech Republic. An RCT of Passport was conducted in Montreal, Canada.