Randomization is an important tool used to establish causal inferences in studies designed to further our understanding of questions related to obesity and nutrition. To take advantage of the inferences afforded by randomization, scientific standards must be upheld during the planning, execution, analysis...
environment. A dimmer switch allowed participants to control the brightness of the florescent ceiling lights. Microwave motion sensor (BB-150, Museum Technology Source Inc. Wilmington, MA) was used to detect participant movement. Two video cameras (2600 IP Camera, Cisco Systems Inc.; San Jose, ...