For decades, body mass index (BMI) has been the dominant tool for defining obesity, despite longstanding concerns that it poorly reflects individual health risk. Growing evidence suggests that the ...

Pew Research Center’s survey on international knowledge covers facts about global leaders, international institutions and geography, among other topics. The following criteria are used to evaluate how ...

Dr Max Welz introduces research aiming to make statistical analyses robust against so-called ‘contamination’ in rating data stemming from low-quality survey responses. Empirical research in the social ...