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Crowdsourcing Hypothesis Tests: Making Transparent How Design Choices Shape Research Results, Justin F. Landy, Miaolei Jia, Isabel L. Ding, Domenico Viganola, Warren Tierney, Andree Hartanto
Crowdsourcing Hypothesis Tests: Making Transparent How Design Choices Shape Research Results, Justin F. Landy, Miaolei Jia, Isabel L. Ding, Domenico Viganola, Warren Tierney, Andree Hartanto
Research Collection School of Social Sciences
To what extent are research results influenced by subjective decisions that scientists make as they design studies? Fifteen research teams independently designed studies to answer five original research questions related to moral judgments, negotiations, and implicit cognition. Participants from two separate large samples (total N > 15,000) were then randomly assigned to complete one version of each study. Effect sizes varied dramatically across different sets of materials designed to test the same hypothesis: materials from different teams rendered statistically significant effects in opposite directions for four out of five hypotheses, with the narrowest range in estimates being d = -0.37 to …