{"$schema":"https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json","name":"org.agenticjournal/paper-bartos-schimmack-2022-zcurve","description":"Estimates expected replication and discovery rates from significant test results.","version":"0.2.0","title":"Z-curve Agent","websiteUrl":"https://doi.org/10.15626/MP.2021.2720","remotes":[{"type":"streamable-http","url":"https://paper-agent-z-curve-418969583050.europe-west1.run.app/z-curve/mcp"}],"_meta":{"org.agenticjournal.registry/agent":{"longDescription":"Z-curve 2.0 fits a finite mixture to the z-statistics of statistically significant results to estimate the expected replication rate and the expected discovery rate of a literature, correcting for selection for significance.","availability":"hosted","capabilityKinds":["score","critique"],"skills":[{"id":"zcurve","name":"Zcurve","description":"Expected replication rate (ERR) and discovery rate (EDR), with 95% intervals.","tags":[]},{"id":"versions","name":"Versions","description":"Report the R and package versions this agent runs, its limits, and its paper.","tags":[]}]},"org.agenticjournal.registry/official":{"status":"active","isLatest":true},"org.agenticjournal.registry/paper":{"doi":"10.15626/MP.2021.2720","title":"Z-curve 2.0: Estimating Replication Rates and Discovery Rates","year":2022,"venue":"Meta-Psychology","license":"CC-BY-4.0","openAccessUrl":"https://open.lnu.se/index.php/metapsychology/article/download/2720/2881","authors":[{"family":"Bartoš","given":"František"},{"family":"Schimmack","given":"Ulrich"}],"csl":{"DOI":"10.15626/mp.2021.2720","URL":"http://dx.doi.org/10.15626/MP.2021.2720","ISSN":["2003-2714"],"link":[{"URL":"https://open.lnu.se/index.php/metapsychology/article/download/2720/2881","content-type":"application/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https://open.lnu.se/index.php/metapsychology/article/download/2720/2881","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"type":"journal-article","score":1,"title":"Z-curve 2.0: Estimating Replication Rates and Discovery Rates","author":[{"role":[{"role":"author","vocabulary":"crossref"}],"given":"František","family":"Bartoš","sequence":"first","affiliation":[]},{"role":[{"role":"author","vocabulary":"crossref"}],"given":"Ulrich","family":"Schimmack","sequence":"additional","affiliation":[]}],"issued":{"date-parts":[[2022,9,1]]},"member":"6393","prefix":"10.15626","source":"Crossref","volume":"6","created":{"date-time":"2022-09-01T05:43:54Z","timestamp":1662011034000,"date-parts":[[2022,9,1]]},"indexed":{"version":"4.0.1","date-time":"2026-09-22T22:27:02Z","timestamp":1790116022784,"date-parts":[[2026,9,22]]},"license":[{"URL":"https://creativecommons.org/licenses/by/4.0/","start":{"date-time":"2022-09-01T00:00:00Z","timestamp":1661990400000,"date-parts":[[2022,9,1]]},"delay-in-days":0,"content-version":"unspecified"}],"subject":[],"abstract":"<jats:p>Selection for statistical significance is a well-known factor that distorts the published literature and challenges the cumulative progress in science. Recent replication failures have fueled concerns that many published results are false-positives. Brunner and Schimmack (2020) developed z-curve, a method for estimating the expected replication rate (ERR) – the predicted success rate of exact replication studies based on the mean power after selection for significance. This article introduces an extension of this method, z-curve 2.0. The main extension is an estimate of the expected discovery rate (EDR) – the estimate of a proportion that the reported statistically significant results constitute from all conducted statistical tests. This information can be used to detect and quantify the amount of selection bias by comparing the EDR to the observed discovery rate (ODR; observed proportion of statistically significant results). In addition, we examined the performance of bootstrapped confidence intervals in simulation studies. Based on these results, we created robust confidence intervals with good coverage across a wide range of scenarios to provide information about the uncertainty in EDR and ERR estimates. We implemented the method in the zcurve R package (Bartoš &amp; Schimmack, 2020).</jats:p>","relation":{"has-preprint":[{"id":"10.31234/osf.io/urgtn","id-type":"doi","asserted-by":"object"}]},"resource":{"primary":{"URL":"https://open.lnu.se/index.php/metapsychology/article/view/2720"}},"subtitle":[],"deposited":{"date-time":"2023-07-06T07:39:34Z","timestamp":1688629174000,"date-parts":[[2023,7,6]]},"published":{"date-parts":[[2022,9,1]]},"publisher":"Linnaeus University","reference":[{"DOI":"10.31234/osf.io/ev29a","key":"ref0","unstructured":"Bartoš, F., & Maier, M. (In press). Power or alpha? The better way of decreasing the false discovery rate. https://doi.org/10.31234/osf.io/ev29a","doi-asserted-by":"publisher"},{"key":"ref1","unstructured":"Bartoš, F., & Schimmack, U. 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