At a local community meeting with friends,Jim heard dozens of personal testimonials regarding the amazing relief from depression produced by an over-the-counter herbal supplement.Before committing to purchase this herbal remedy,Jim should first determine whether studies of the effectiveness of this remedy had properly controlled for

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Jim should first determine whether studies of the effectiveness of this remedy had properly controlled for the placebo effect, as people's belief that the herbal supplement can help alleviate depression may contribute to their improved mood, even if the supplement itself has no actual therapeutic effect.

At a Local Community Meeting with Friends,Jim Heard Dozens of Personal