How common are the sorts of analytic biases that pervaded Wansink’s work, and that undermined the study on power posing? In 2012, a poll of over 2,000 psychologists asked them if they had engaged in a range of p-hacking practices.66 Had they ever collected data on several different outcomes but not reported all of them? Approximately 65 per cent said they had. Had they excluded particular datapoints from their analysis after peeking at the results? 40 per cent said yes. And around 57 per cent said they’d decided to collect further data after running their analyses – and presumably finding them
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