TY - JOUR
T1 - The memory assessment clinics scale for epilepsy (MAC-E)
T2 - A brief measure of subjective cognitive complaints in epilepsy
AU - Miller, Margaret
AU - Honomichl, Ryan
AU - Lapin, Brittany
AU - Hogan, Thomas
AU - Thompson, Nicholas
AU - Barr, William B.
AU - Friedman, Daniel
AU - Sieg, Erica
AU - Schuele, Stephan
AU - Kurtish, Selin Yagci
AU - Özkara, Cigdem
AU - Lin, Katia
AU - Wiebe, Samuel
AU - Jehi, Lara
AU - Busch, Robyn M.
N1 - Publisher Copyright:
© 2020 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2020
Y1 - 2020
N2 - Objective: The aim of this study was to conduct item reduction of the Memory Assessment Clinics Self-Rating Scale (MAC-S) to create a briefer measure that can be used to quickly evaluate subjective memory complaints in patients with epilepsy. Method: A total of 1333 adults with focal epilepsy completed the original 49-item MAC-S. The sample was randomly split into three subsamples, and a series of analyses (i.e. exploratory factor analysis, confirmatory factor analysis, and item response theory analyses) was conducted to identify an alternative factor structure, with a reduced number of items. A panel of 5 neuropsychologists independently reviewed the final model to assess appropriateness of each individual item as well as the factor loadings and overall factor structure. Final factor titles were subsequently decided as a group. Results: Five factors were identified: Attention, Working Memory, Retrieval, Semantic Memory, and Episodic Memory. The length of the MAC-S was reduced from 49 to 30 items, with items being removed because they failed to load onto any of the factors substantially, or because of poor item discrimination or threshold levels. Conclusions: The Memory Assessment Clinics Scale for Epilepsy (MAC-E), is an updated, brief measure of subjective memory functioning that can be used to efficiently assess relevant, every-day memory abilities in patients with epilepsy within both clinical and research settings.
AB - Objective: The aim of this study was to conduct item reduction of the Memory Assessment Clinics Self-Rating Scale (MAC-S) to create a briefer measure that can be used to quickly evaluate subjective memory complaints in patients with epilepsy. Method: A total of 1333 adults with focal epilepsy completed the original 49-item MAC-S. The sample was randomly split into three subsamples, and a series of analyses (i.e. exploratory factor analysis, confirmatory factor analysis, and item response theory analyses) was conducted to identify an alternative factor structure, with a reduced number of items. A panel of 5 neuropsychologists independently reviewed the final model to assess appropriateness of each individual item as well as the factor loadings and overall factor structure. Final factor titles were subsequently decided as a group. Results: Five factors were identified: Attention, Working Memory, Retrieval, Semantic Memory, and Episodic Memory. The length of the MAC-S was reduced from 49 to 30 items, with items being removed because they failed to load onto any of the factors substantially, or because of poor item discrimination or threshold levels. Conclusions: The Memory Assessment Clinics Scale for Epilepsy (MAC-E), is an updated, brief measure of subjective memory functioning that can be used to efficiently assess relevant, every-day memory abilities in patients with epilepsy within both clinical and research settings.
KW - Epilepsy
KW - factor analysis
KW - item response theory
KW - memory
KW - self-report
UR - http://www.scopus.com/inward/record.url?scp=85094203031&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85094203031&partnerID=8YFLogxK
U2 - 10.1080/13854046.2020.1837245
DO - 10.1080/13854046.2020.1837245
M3 - Article
C2 - 33106081
AN - SCOPUS:85094203031
JO - Clinical Neuropsychologist
JF - Clinical Neuropsychologist
SN - 0920-1637
ER -
