“…Moreover, longitudinal and cross-sectional ageing studies have shown that there are domainspecific cognitive changes throughout the lifespan (Hedden & Gabrieli, 2004;Whalley, Deary, Appleton, & Starr, 2004). Studies have shown that executive functions and language production decline across the adult lifespan, while semantic knowledge, language comprehension and recognition performance remain more stable (Hedden & Gabrieli, 2004;Hooren et al, 2007; While cut-off scores of the OCS have been reported for specific education and age groups in the different normative studies (Demeyere et al, 2015;Hong et al, 2018;Kong et al, 2016;Mancuso et al, 2016;Robotham et al, 2019;Shendyapina et al, 2018;Valera-Gran et al, 2019), the association of OCS performance with other socio-economic characteristics, income and occupational status, has not been investigated yet.…”