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PRODID:https://www.diw.de/de/diw_01.c.806339.de/veranstaltungen.html
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UID:diw_01.c.882686.en
LOCATION:Karl Popper Room,DIW Berlin,2.3.020,Anton-Wilhelm-Amo-Strasse 58,10117 Berlin
SUMMARY:Selective reporting of placebo tests in top economics journals
DESCRIPTION:12:30-13:30 // Placebo tests, where a null result is used to support the validity of the research design, is common in economics. Such tests provide an incentive to underreport statistically significant tests, a form of reversed p-hacking. Based on a pre-registered analysis plan, we test for such underreporting in all papers meeting our inclusion criteria (n=377) published in 11 top economics journals between 2009-2021. If the null hypothesis is true in all tests, 2.5% of them should be statistically significant at the 5% level with an effect in the same direction as the main test (and 5% in total). The actual fraction of statistically significant placebo tests with an effect in the same direction is 1.29% (95% CI [0.83, 1.63]), and the overall fraction of statistically significant placebo tests is 3.10% (95% CI [2.2, 4.0]). Our results provide strong evidence of selective underreporting of statistically significant placebo tests in top economics journals.  
DTSTART:20231101T113000Z
DTEND:20231101T123000Z
DTSTAMP:20231011T220000Z
URL:https://www.diw.de/en/diw_01.c.882686.en/events/selective_reporting_of_placebo_tests_in_top_economics_journals.html
ORGANIZER;CN=Thomas Rieger:mailto:trieger@diw.de
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