Before and After Study : A study which compares data collected before an intervention begins (baseline), with the same data collected after the intervention has been delivered
Dorset County Council Local Authorities, Education Training and Publicity ETP Glossary, (TheRoad Safety ETP Evaluation Project Working Group), UK 2010. http://www.roadsafetyevaluation.com/glossary/index .html, (Road Trfc and Transp Sfty - Brit) {605}