The Brazilian standardization of the MATRICS consensus cognitive battery (MCCB): Psychometric study

Schizophr Res. 2017 Jul:185:148-153. doi: 10.1016/j.schres.2017.01.006. Epub 2017 Jan 17.

Abstract

Objective: Translate, adapt, and validate the MATRICS Consensus Cognitive Battery (MCCB) in Brazil.

Method: The present study followed three steps: 1) translation to Portuguese, cultural adaptation, and back translation to English; 2) completion of a pilot study (N=30) conducted with the purpose of assessing whether the general comprehension of the items was clear and all participants adequately responded to the battery; 3) completion of a Reliability and Validation Study of the Brazilian version of the MCCB with 99 individuals with schizophrenia and 99 healthy subjects. All participants were administered the Structured Clinical Interview for DSM-IV (Diagnostic and Statistical Manual of Mental Disorders) and patients were also rated on the Global Assessment of Functioning (GAF) Scale and the Positive and Negative Symptoms Scale (PANSS).

Results: The results showed adequate to high levels of baseline and 4-week retest reliability, except the MSCEIT-ME; adequate internal consistency for the MSCEIT-ME for the total sample and patients group, and moderate Alpha for the health control sample; as well as evidence of convergent validity and sensitivity to differentiate performance between the groups. All the 10 MCCB measures showed the lowest learning effects.

Conclusion: Overall the Brazilian version of the MCCB showed similar results to the original North American version. Our findings provides reassurance that the MCCB is a reliable and valid measure of cognition across different countries and cultures, which is especially important to the ongoing work in attempting to discover cognition-enhancing drugs and the effects of cognitive interventions for the treatment of schizophrenia.

Keywords: Cognitive deficits; MATRICS consensus cognitive battery; Neurocognitive function; Neuropsychology; Schizophrenia.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Brazil
  • Cognition Disorders / diagnosis*
  • Cognition Disorders / etiology*
  • Consensus
  • Female
  • Humans
  • Male
  • Middle Aged
  • Neuropsychological Tests / standards*
  • Neuropsychological Tests / statistics & numerical data
  • Psychiatric Status Rating Scales
  • Psychometrics / methods
  • Psychometrics / standards*
  • Schizophrenia / complications*
  • Schizophrenic Psychology
  • Translating*