This is the analysis script used in this study "Neuropsychiatric symptoms and metamemory across the life span: psychometric properties of the German Multifactorial Memory Questionnaire (MMQ)" DOI: 10.1007/s00415-024-12402-4. The questionnaire is available here: baycrest.org/Baycrest_Centre/media/images/MMQ-German-2024.pdf
The associated data is available on the open access repository of the Humboldt-Universität zu Berlin at https://doi.org/10.18452/26821.
If you have any questions, feel free to contact me at sophia.rekers@charite.de.