In general, the study was straightforward and had a clear goal; however, they should have given more information about how they were able to control for social class, age, and obesity when analyzing the results.
The study was straightforward. This was in general. The study had a clear goal. This was in general. They should have given more information about how they were able to control for social class when analyzing the results. This was however. They should have given more information about how they were able to control for age when analyzing the results. This was however. They should have given more information about how they were able to control for obesity when analyzing the results. This was however.