Answer
Lack of blindness could cause bias in the reported results as the experimenter might be convinced that meditation should succeed in lowering anxiety and cause the subjects to feel that they should have lowered anxiety, while not inspiring such feelings in the group that did not meditate.
Work Step by Step
Lack of blindness could cause bias in the reported results as the experimenter might be convinced that meditation should succeed in lowering anxiety and cause the subjects to feel that they should have lowered anxiety, while not inspiring such feelings in the group that did not meditate.
