As we ring in the new year, here are a couple of updates on tests some of you may be using in your forensic practices.
Miranda instruments revised
When it comes to assessing whether a criminal defendant had the capacity to waive his or her Miranda rights prior to giving a statement to police, there is only one game in town -- the Instruments for Assessing Understanding and Appreciation of Miranda Rights by eminent forensic psychologist Tom Grisso and colleagues. Now, that set of tests has been completely revised and given a new name: the Miranda Rights Comprehension Instruments (MRCI). One of the main problems with the old instruments was that their language was more complex than the actual language used by many police warnings, reducing their real-world validity. That problem has been rectified through simpler language in the new edition. Also, the test developers promise better psychometric properties and updated normative data. But it's kind of a tricky situation, because we are being instructed to use the new instruments when assessing juveniles, but to stick with the old ones for assessing adults until new adult norms are published some time in 2013. More on the new instruments is HERE.
Facelift for gold-standard malingering test