| Autor: |
Puente-López E; Department of Psychology, Universidad de Valladolid, Valladolid, Spain., Pina D; Applied Psychology Service, Universidad de Murcia, Murcia, Spain., Rambaud-Quiñones P; Applied Psychology Service, Universidad de Murcia, Murcia, Spain., Ruiz-Hernández JA; Applied Psychology Service, Universidad de Murcia, Murcia, Spain., Nieto-Cañaveras MD; Department of Psychology, Universidad Antonio de Nebrija, Madrid, Spain., Shura RD; Mid-Atlantic (VISN 6) Mental Illness Research, Education, and Clinical Center (MIRECC), Salisbury VA Medical Center, Salisbury, NC, USA., Alcazar-Crevillén A; Mutua MAZ, Zaragoza, Spain., Martinez-Jarreta B; Mutua MAZ, Zaragoza, Spain.; Department of Pathological Anatomy, Forensic and Legal Medicine and Toxicology, Universidad de Zaragoza, Zaragoza, Spain. |
| Abstrakt: |
Objective: The present study aims to evaluate the classification accuracy and resistance to coaching of the Inventory of Problems-29 (IOP-29) and the IOP-Memory (IOP-M) with a Spanish sample of patients diagnosed with mild traumatic brain injury (mTBI) and healthy participants instructed to feign. Method: Using a simulation design, 37 outpatients with mTBI (clinical control group) and 213 non-clinical instructed feigners under several coaching conditions completed the Spanish versions of the IOP-29, IOP-M, Structured Inventory of Malingered Symptomatology, and Rivermead Post Concussion Symptoms Questionnaire. Results: The IOP-29 discriminated well between clinical patients and instructed feigners, with an excellent classification accuracy for the recommended cutoff score (FDS ≥ .50; sensitivity = 87.10% for coached group and 89.09% for uncoached; specificity = 95.12%). The IOP-M also showed an excellent classification accuracy (cutoff ≤ 29; sensitivity = 87.27% for coached group and 93.55% for uncoached; specificity = 97.56%). Both instruments proved to be resistant to symptom information coaching and performance warnings. Conclusions: The results confirm that both of the IOP measures offer a similarly valid but different perspective compared to SIMS when assessing the credibility of symptoms of mTBI. The encouraging findings indicate that both tests are a valuable addition to the symptom validity practices of forensic professionals. Additional research in multiple contexts and with diverse conditions is warranted. |
