Reliability and Validity of the European Portuguese Version of the Multisensory Amplification Scale in Adolescents

AIM: To translate the Multisensory Amplification Scale (MSAS) into European Portuguese and assess its validity and reliability in adolescents. METHODS: The MSAS was completed by 252 adolescents, who also responded online to the questionnaires: Nordic Musculoskeletal Questionnaire, Functional Disability Inventory, Depression, Anxiety and Stress Scale, Basic Scale on Insomnia Complaints and Quality of Sleep, and Central Sensitization Inventory. To assess test-rest reliability and measurement error, a subsample of 114 adolescents completed the MSAS twice. Structural validity and hypotheses testing were explored to assess construct validity. RESULTS: = 0.24) in adolescents with chronic pain. CONCLUSION: The MSAS European Portuguese version appears to be valid and reliable in adolescents with and without chronic pain.