Questionable Research Practices in Experimental Communication Research: A Systematic Analysis From 1980 to 2013

Author(s)
Jörg Matthes, Franziska Marquart, Brigitte Naderer, Florian Arendt, Desiree Schmuck, Karoline Adam
Abstract

Questionable research practices (QRPs) pose a major threat to any scientific discipline. This article analyzes QRPs with a content analysis of more than three decades of published experimental research in four flagship communication journals: Journal of Communication, Communication Research, Journalism & Mass Communication Quarterly, and Media Psychology. Findings reveal indications of small and insufficiently justified sample sizes, a lack of reported effect sizes, an indiscriminate removal of cases and items, an increasing inflation of p-values directly below p <.05, and a rising share of verified (as opposed to falsified) hypotheses. Implications for authors, reviewers, and editors are discussed.

Organisation(s)
Department of Communication
External organisation(s)
Ludwig-Maximilians-Universität München
Journal
Communication Methods & Measures
Volume
9
Pages
193-207
No. of pages
15
ISSN
1931-2458
DOI
https://doi.org/10.1080/19312458.2015.1096334
Publication date
2015
Peer reviewed
Yes
Austrian Fields of Science 2012
508009 Media research, 508007 Communication science
ASJC Scopus subject areas
Communication
Portal url
https://ucrisportal.univie.ac.at/en/publications/questionable-research-practices-in-experimental-communication-research-a-systematic-analysis-from-1980-to-2013(d6ac7eea-ad94-43f4-ad39-1b7642806153).html