Montreal Communication Evaluation Brief Battery – MEC B: reliability and validity

PURPOSE: Search for reliability and validity evidence for the Montreal Communication Evaluation Brief Battery (MEC B) for adults with right brain damage. METHODS: Three hundred twenty-four healthy adults and 26 adults with right brain damage, aged 19-75 years, with two or more years of education were evaluated with MEC B. The MEC B Battery contains nine tasks that aim to evaluate communicative abilities as discourse, prosody, lexical-semantic and pragmatic process. Two sources of reliability evidence were used: internal consistency (Cronbach's alpha) and interrater reliability. Construct validity was evaluated comparing the Montreal Communication Evaluation Battery (MEC), expanded version and MEC B tasks. RESULTS: Internal consistence was satisfactory and the interrater reliability was considered excellent, as were correlations between MEC Battery and MEC B Battery tasks. CONCLUSION: The MEC B Battery showed satisfactory reliability and validity evidences. It can be used as outcome measure of intervention programs and assist speech therapists to plan rehabilitation programs.