A comparison group is a group of people or things that are used for comparison to see if there are any differences or effects. It helps us understand the impact of something by comparing it to other similar things. Full definition
Evidence based programs have research that aligns with guidelines for high - quality research including comparison groups, reliable measures of student performance, appropriate statistical analyses, and statistically significant positive results. (imaginelearning.com)
Additional studies with comparison groups encompassing all or most of the attributes of the medical home need to be undertaken. (pediatrics.aappublications.org)
Significant differences were not found between the intervention and comparison group on children's behaviors by the end of the follow - up period for this study. (cebc4cw.org)