Beginning in 2010, leading wellbeing scientists began to discuss, design, and forge collaborations with different psychology research laboratories in order to create an ambitious project to continually assess and track 20 million people worldwide using 20 languages.
Jarden, A. (2012, April). The GROW Project: Building the world's largest and most in-depth psychological study. Paper presented at the New Zealand Psychological Society Annual Conference, Wellington, New Zealand.