I can understand your hesitation on working with a double blind study. However, a double blind study at times is necessary to obtain clear unbiased results. There have been times where studies have been manipulated by doctors or principal investigators. This can occur due to immense pressures on researchers to provide positive and conclusive results. Thus, researchers will try to sway the data results. In double blind studies because neither the doctor nor the patient knows, there will likely be no inkling of bias in the results. Most double blind studies are done for drug testing.