cognition overall and within a subset of students with attention difficulties.
3. Proposed Experiments
3.1.
Participants
Ten Pennsylvania high schools with diverse student populations in terms of gender and ethnic make-up will participate in a four year investigation of how stand-biased class room environments impact cognition. Each school will be randomized to either keep their traditional seated classrooms or be outfitted with stand-biased desks in all classrooms used by their students in grades 9-12. Ideally, 500 students from each condition (traditional classroom or standing-desk classroom) will consent to participate in data collection.
Kessler et al. (2006) gave U.S. 2007 ADHD prevalence by parent-report as 9.5%. At this prevalence rate, it is hoped that within the consented students, there will naturally be 45 + students in each condition who either have a diagnosis of ADD/ADHD and/or have high attention
difficulties.