RESUMEN
BACKGROUND: The Memory Alteration Test (M@T) is a verbal episodic and semantic memory screening test able to detect subjective cognitive decline (SCD) and Mild Cognitive Impairment (MCI). OBJECTIVE: To adapt M@T, creating a Greek version of the Memory Alteration Test (M@T-GR), and to validate M@T-GR compared to the Mini-Mental State Examination (MMSE), and Subjective Cognitive Decline- Questionnaire (SCD-Q) MyCog and TheirCog. METHODS: 232 people over 55 years old participated in the study and they were classified as healthy controls (HC, nâ=â65), SCD (nâ=â78), or MCI (nâ=â89). RESULTS: The ANCOVA showed that the M@T-GR's total score was significantly different in HC and SCD (I-Jâ=â2.26, pâ=â0.032), HC and MCI (I-Jâ=â6.16, pâ<â0.0001), and SCD compared to MCI (I-Jâ=â3.90, pâ<â0.0001). In particular, a cut-off score of 46.50 points had an 81%sensitivity and 61%specificity for discriminating HC from SCD (AUCâ=â0.76, pâ<â0.0001), while a cut-off score of 45.50 had a sensitivity of 92%and a specificity of 73%for discriminating MCI (AUCâ=â0.88, pâ<â0.0001), and a cut-off score of 45.50 points had a sensitivity of 63%and a specificity of 73%for discriminating SCD from those with MCI (AUCâ=â0.69, pâ<â0.0021). Exploratory factor analysis indicated that there was one factor explaining 38.46%of the total variance. Internal consistency was adequate (α=â0.75), while convergent validity was found between M@T-GR and MMSE (râ=â0.37, pâ<â0.0001) and SCD-Q TheirCog (râ=â-0.32, pâ<â0.0001). CONCLUSION: The M@T-GR is a good to fair screening tool with adequate discriminant validity for administration in people with SCD and MCI in Greece.