It did not include a control group of participants who did not change their diet, which would have helped isolate the effects of the lifestyle modifications. (alivebynature.com)
After a brief small - group discussion and reflection, engage the larger group of participants in conversation about what they saw. (edutopia.org)
The sample of the study was composed of 20 mother — child pairs selected from a larger group of participants enrolled in an infant massage course. (frontiersin.org)