Expression of Concern

‘How Leader‐Member Exchange Influences Effective Work Behaviors: Social Exchange and Internal‐External Efficacy Perspectives’ by Fred O. Walumbwa, Russell Cropanzano, and Barry M. Goldman DOI: 10.1111/j.1744‐6570.2011.01224.x ‘Leadership in Action Teams: Team Leader and Members’ Authenticity, Authenticity Strengths, and Team Outcomes’ by Sean T. Hannah, Fred O. Walumbwa, and Louis W. Fry DOI:10.1111/j.1744‐6570.2011.01225.x Concern has been raised in relation to five articles published in Personnel Psychology between 2007 and 2011. The substance of the complaint is that the fit statistics reported in the articles contain numerous errors. The journal has conducted an investigation into the matter, including seeking the opinion of a third party. In the case of three of the articles, any errors or omissions were either reconciled or determined not to significantly affect the articles’ findings or conclusions. In the case of the two articles listed above, published online on 22 August 2011 in Wiley Online Library, and in Volume 64, pp. 739–770 and 771–802, respectively, the journal concluded that there may be errors in some of the reported fit statistics, but it is difficult to understand the nature of the potential errors and their implications unless the raw data is made available. Unfortunately, the journal was not provided with the raw data, despite repeated requests to the authors. In the case of the second article (Hannah et al., 2011), a governmental agency confirmed that they collected the data and controlled its storage, but no longer maintained the data after five years and thus could not make it available. Thus, consistent with guidelines published by the Committee on Publication Ethics (COPE), this Expression of Concern is issued by agreement of the Editor, Bradford S. Bell, and Wiley Periodicals, Inc. to make our readers aware of the potential issues with the results reported in these articles. Dr. Walumbwa, a co‐author on the five respective articles, has requested that readers be informed that he was responsible for the analyses. The journal has updated its article submission process such that authors will now have to explicitly agree to retain their raw data for a minimum of 5 years after publication of the research and to provide their data for verification when requested by the journal and editor, providing confidentiality of participants can be protected and legal rights concerning proprietary data do not preclude their release.