AUTHOR=Trafimow David TITLE=Commentary: Reproducibility in Psychological Science: When Do Psychological Phenomena Exist? JOURNAL=Frontiers in Psychology VOLUME=8 YEAR=2017 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2017.00918 DOI=10.3389/fpsyg.2017.00918 ISSN=1664-1078