Creation and Validation of the MMQ-9: A Short Version of the Multifactorial Memory Questionnaire for Middle-Aged and Older Adults.

Objectives: Memory concerns are common among older adults. The Multifactorial Memory Questionnaire (MMQ) is a well-validated participant-reported measure consisting of 57 items across three subscales assessing satisfaction with memory, self-perceived memory ability, and memory strategy use, respectively. Because short scales are often desired to accommodate clinical time constraints and reduce respondent burden, we created and evaluated 9-item versions of each subscale (MMQ-9).