Allegiance Effects in Assessment: Unresolved Questions, Potential Explanations, and Constructive Remedies
Version of Record online: 23 OCT 2008
© 2008 American Psychological Association
Clinical Psychology: Science and Practice
Volume 15, Issue 4, pages 361–365, December 2008
How to Cite
Lilienfeld, S. O. and Jones, M. K. (2008), Allegiance Effects in Assessment: Unresolved Questions, Potential Explanations, and Constructive Remedies. Clinical Psychology: Science and Practice, 15: 361–365. doi: 10.1111/j.1468-2850.2008.00148.x
- Issue online: 23 OCT 2008
- Version of Record online: 23 OCT 2008
- Received April 29, 2008; accepted April 29, 2008.
- allegiance effect;
- risk assessment;
The provocative results of Blair, Marcus, and Boccaccini (2008) suggest that the allegiance effect, previously suggested in psychotherapy outcome studies, may apply to studies of actuarial risk assessment. Despite this finding, the mechanisms of the effect, particularly in assessment research, are unknown and warrant further investigation. We discuss the file drawer effect, selective reporting, and “data massaging” as three potential explanations for allegiance effects in the assessment domain. Furthermore, we offer four suggestions for minimizing allegiance effects and their impact: routinely coding for allegiance in meta-analytic studies, operationalizing allegiance in multiple ways, encouraging collaborations among authors with differing allegiances, and creating study registries to track all dependent variables measured in studies.