Detection of Feigned ADHD Using the MOXO-d-CPT

Corinne Berger, Astar Lev, Yoram Braw, Tomer Elbaum, Michael Wagner, Yuri Rassovsky

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


Objective: The objective of this study was to assess the MOXO-d-CPT utility in detecting feigned ADHD and establish cutoffs with adequate specificity and sensitivity. Method: The study had two phases. First, using a prospective design, healthy adults who simulated ADHD were compared with healthy controls and ADHD patients who performed the tasks to the best of their ability (n = 47 per group). Participants performed the MOXO-d-CPT and an established performance validity test (PVT). Second, the MOXO-d-CPT classification accuracy, employed in Phase 1, was retrospectively compared with archival data of 47 ADHD patients and age-matched healthy controls. Results: Simulators performed significantly worse on all MOXO-d-CPT indices than healthy controls and ADHD patients. Three MOXO-d-CPT indices (attention, hyperactivity, impulsivity) and a scale combining these indices showed adequate discriminative capacity. Conclusion: The MOXO-d-CPT showed promise for the detection of feigned ADHD and, pending replication, can be employed for this aim in clinical practice and ADHD research.

Original languageEnglish
Pages (from-to)1032-1047
Number of pages16
JournalJournal of Attention Disorders
Issue number7
StatePublished - May 2021


  • ADHD
  • MOXO-d-CPT
  • continuous performance tests (CPT)
  • feigned cognitive impairment
  • malingering


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