The MATRICS Consensus Cognitive Battery, part 2: co-norming and standardization

Area of Science:

• Neuroscience
• Psychology
• Clinical Trials

Background:

• The Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) initiative developed a standard cognitive battery for schizophrenia research.
• Interpreting results across independently developed tests with varying norms is challenging.

Purpose of the Study:

• To establish normative data for the MATRICS Consensus Cognitive Battery (MCCB) in a representative U.S. community sample.
• To facilitate score interpretation and facilitate composite score derivation for clinical trials.

Main Methods:

• Administered the MCCB to 300 individuals across five U.S. geographic regions.
• Stratified recruitment by age, gender, and education, employing scientific survey sampling.
• Collected data in a single session, followed by analysis of demographic effects.

Main Results:

• Significant effects of age and education on cognitive performance were identified across MCCB tests.
• Gender effects varied by cognitive measure, indicating a need for demographic corrections.
• The MCCB components were successfully co-normed, incorporating demographic adjustments.

Conclusions:

• Co-norming the MCCB enhances the validity of score interpretation and cross-study communication.
• These normative data are crucial for estimating treatment effects in clinical trials for schizophrenia.
• The derived composite scores will improve the interpretability of findings from interventions targeting cognitive function.