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Chunk #11 — Method — Publishing everything is more effective (I): Re-analysis of W&H's results

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Why publishing everything is more effective than selective publishing of statistically significant results.
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The second reason why publishing everything is more effective concerns the neglect of time and money in the analysis of W&H; “… the factor time is not included in our simulation models. That is, results are assessed per publication without taking into account study completion and the time between study completion and publication.” (p2). They compared both approaches conditional on the number of published studies. However, the 40th published study in publishing everything corresponds to on average the 704th conducted study (p.3) in the selective publishing approach. Hence on average 17.6 more time evolves and money is spent on data collection and doing research in the selective publishing approach to obtain the same number of 40 published studies in the publishing everything approach. To conclude, publishing everything is also more effective than selective publishing using cost-benefit and time considerations.