The San Luis Obispo Tribune reported that "a new analysis has found that in the majority of trials conducted by drug companies in recent decades, sugar pills have done as well asor better thanantidepressants." What effect is being described here? the double-blind effect the control effect the single-blind effect the placebo effect What does this imply about the design of experiments with a goal of evaluating the effectiveness of a new medication? The experiments have included patients who received placebo in the place of antidepressants. The experiments were double-blind experiments. The experiments have included a control group of patients. The experiments were single-blind experiments