Using the inventory of problems - 29 (IOP-29) with the Test of Memory Malingering (TOMM) in symptom validity assessment: A study with a Portuguese sample of experimental feigners.

This study tested whether combining the Inventory of Problems - 29 (IOP-29) with the Test of Memory Malingering (TOMM) would increase sensitivity in the detection of experimentally feigned mental health problems, compared to using either test alone. Additionally, it also evaluated (a) the effects of administration order of these two tests and (b) the cultural and linguistic applicability of these tests to a European Portuguese population. The IOP-29 and TOMM were administered to a community sample of 100 nonclinical, adult volunteers from Portugal, with the instruction to feign mental health problems.