https://www.psychologytoday.com/us/blog/overcoming-pain/201011/the-hawthorne-effect-and-the-overestimation-of-treatment-effectiveness
The Hawthorne Effect And The Overestimation of Treatment Effectiveness | Psychology Today
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https://www.reverbnation.com/thehawthorneeffect
The Hawthorne Effect | ReverbNation
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