RT Journal Article SR Electronic T1 A Pilot Rasch Scaling of Lawyers' Perceptions of Expert Bias JF Journal of the American Academy of Psychiatry and the Law Online JO J Am Acad Psychiatry Law FD American Academy of Psychiatry and the Law SP 482 OP 491 VO 34 IS 4 A1 Frank M. Dattilio A1 Michael Lamport Commons A1 Kathryn Marie Adams A1 Thomas G. Gutheil A1 Robert L. Sadoff YR 2006 UL http://jaapl.org/content/34/4/482.abstract AB How seriously do attorneys consider the biases of their retained mental health experts? Participants in this pilot study included 40 attorneys, randomly selected from a pool of members of the Pennsylvania Bar Institute, who rated—for their biasing potential—several situations that might affect the behavior of an expert. A Rasch analysis produced a linear scale as to the perceived biasing potential of these different items from most to least biasing. Among other results, the study suggests that attorneys do view mental health experts who work on both sides of cases as being more balanced in their testimony. However, they also indicated that they have a preference for using individuals who repeatedly testify for one side. Working for only one side in both civil and criminal cases yielded large scaled values. Additional comments offered by respondents indicated that: (1) an opposing expert also serving as the litigant's treater and (2) an opposing expert being viewed as a “hired gun” (supplying an opinion only for money) were viewed by subjects as not being very biased. A discussion of the results raises the need for future research in this area.