For example, to clarify whether or not having more options makes it harder for people to settle on any one item, a meta-analysis of over 53 conflicting studies on the phenomenon was conducted.

Business analysts from the University of Melbourne, in Australia, the Nanyang Technological University, in Singapore, and ...

In this descriptive figure, unlike in the meta-analysis, ratings and outcomes sizes are not weighted by sample size. Credit: Jan Pfänder & Sacha Altay. (Nature Human Behaviour, 2025).

This is the first meta-analysis paper of chronic medication effects on cognition in ADHD, looking at attention, inhibition, reaction time and working memory.