Professor Smith has conducted studies on the applications of ergonomics and industrial psychology for improving working conditions.He was formerly a research program director at the National Institute for Occupational Safety and Health (NIOSH).He is interested in studying the effects of advanced technology, organizational design, working conditions and community development on stress, safety, productivity and performance.He has undertaken projects dealing with redesigning working conditions and community conditions that reduce employee stress, improve health status, reduce injuries and increase positive attitude.