In yoga research, the most common research designs is to compare pre and post measures of a group of people completing a yoga programme. The second most favourite design is to compare a yoga group to an inactive group. Both these designs are unreliable. The first one usually fails to produce similar results, thereby causing serious issues for generalisation of those results. And the second one carries the potential to exaggerate the results in favour of yoga and ignore the fact that other types of exercise have similar benefits.
Continue reading
Ebru's Yoga Blog 