“…The battery comprises the Symbol Digit Modalities Test, California Verbal Learning Test -II (first five recall trials), and Brief Visuospatial Memory Test -Revised (first three recall trials). However, even though its validation is currently under development in different languages and countries, the process has been completed only in a few countries (Dusankova, Kalincik, Havrdova, & Benedict, 2012;Eshaghi et al, 2012;Giedraitienė, Kizlaitienė, & Kaubrys, 2015;Goretti et al, 2014;O'Connell, Langdon, Tubridy, Hutchinson, & McGuigan, 2015;Sandi et al, 2015;Spedo et al, 2015;Walker et al, 2016) and therefore is not yet worldwide available for use in clinical practice. Furthermore, some instruments have been recommended for the screening of CD in MS patients, namely the Symbol Digit Modalities Test (SDMT; Rao, 1991;Smith, 1982), with reported high sensitivity (.91) but poor specificity (.60) (Van Schependom et al, 2014) and good reliability in monitoring cognitive function over time (Morrow et al, 2010).…”