The Inaccuracy of Sample-Based Confidence Intervals to Estimate A Priori Ones

Abstract: Confidence intervals (CIs) constitute the most popular alternative to widely criticized null hypothesis significance tests. CIs provide more information than significance tests and lend themselves well to visual displays. Although CIs are no better than significance tests when used solely as significance tests, researchers need not limit themselves to this use of CIs. Rather, CIs can be used to estimate the precision of the data, and it is the precision argument that may set CIs in a superior position to significance tests. We tested two versions of the precision argument by performing computer simulations to test how well sample-based CIs estimate a priori CIs. One version pertains to precision of width whereas the other version pertains to precision of location. Using both versions, sample-based CIs poorly estimate a priori CIs at typical sample sizes and perform better as sample sizes increase. https://meth.psychopen.eu/index.php/meth/article/view/2807

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
The Inaccuracy of Sample-Based Confidence Intervals to Estimate A Priori Ones ; volume:16 ; number:2 ; day:18 ; month:06 ; year:2020
Methodology ; 16, Heft 2 (18.06.2020)

Urheber
David Trafimow
Joshua Uhalt

DOI
10.5964/meth.2807
URN
urn:nbn:de:101:1-2020101214210988722921
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
14.08.2025, 10:57 MESZ

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Beteiligte

  • David Trafimow
  • Joshua Uhalt

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