UnderstandingMCI.ca: Mixed-Methods Evaluation of a Brief Web-Based Multimedia Lesson to Improve Public and Family Care Partner Knowledge of Mild Cognitive Impairment

Mild cognitive impairment (MCI), also known as mild neurocognitive disorder, represents a transitional stage between normal cognitive aging and dementia and often signals early neurodegenerative change. Despite its clinical importance, MCI remains poorly understood by the public and family care partners, leading to uncertainty and distress following diagnosis. This study evaluated UnderstandingMCI.ca, a brief multimedia e-learning lesson designed to improve MCI literacy among the public and care partners. The lesson was disseminated through the McMaster Optimal Aging Portal, with web analytics tracking uptake, progress, and completion, and a post-lesson survey incorporating the Net Promoter Score (NPS), the Information Assessment Method for all (IAM4all) questionnaire, and open-text feedback assessing perceived impact. Between 15 January and 7 February 2025, over 5000 users initiated the lesson, 1537 completed it, and 984 responded to the survey. Respondents were predominantly women aged 65 years or older. The NPS was 72 (“excellent”); 942 respondents (96%) found the lesson relevant, 937 (95%) anticipated benefits from using the information, and nearly all (982 respondents) reported understanding the material. Thematic analysis of 296 comments identified greater understanding of MCI versus normal aging and dementia, emotional reassurance, and motivation for proactive brain-health behaviors. UnderstandingMCI.ca was well-received, with respondents reporting that the lesson was understandable and relevant, and that they intended to use the information, suggesting it may be a feasible and scalable approach to public and care partner education about MCI.