Means of Combining or Summarizing Data
This chapter considers the ways that different facts and test results can be synthesized and summarized. The Slick criteria, which were designed to facilitate reliable encoding of the data that might be used to judge the validity of an examinee’s presentation during a neuropsychological evaluation, are discussed along with suggested modifications, criticisms, and alternatives. The chapter discusses several quantitative approaches that have been proposed to objectively weigh evidence of feigning, including below-chance performance and estimating the probability of multiple validity test failures. The challenges of creating similar criteria for feigned psychopathology and incompetence are presented, and the importance of considering poor effort (as opposed to an exclusive focus on malingering or feigning) is discussed.