Table 6 BRBN-T normative formulas to calculate T-scores for the Healthy Controls and MS Patients

PASAT

PASAT T score = 22.818 + (3.393*Scale score) + (− 0.495*Education)

PASAT T score = 28.875 + (3.626*Scale score) + (− 0.157*Age) + (5.296*Gender) + (− 0.981*Education)

SRT - LTS

LTS T-Score = 30.652 + (3.827*Scale) + (− 6.674*Gender) + (− 1.052*Education)

LTS T-Score = − 8.665 + (7.448*Scale) + (0.004*Age²) + (− 5.198*Gender) + (− 1.501*Education)

SRT - CLTR

CLTR T-Score = 29.317 + (3.843*Scale score) + (− 8.453*Gender) + (− 0.876 *Education)

CLTR T-Score = − 6.733 + (7.371*Scale score) + (0.003*Age2) + (− 1.777 *Education)

SPART

SPART T-Score = 5.204 + (3.446*Scale score) + (0.297*Age)

SPAR T-Score = 14.988 + (3.773*Scale score) + (0.002*Age2) + (3.894*Gender) + (− 0.739 *Education)

SPART - D

SPART-D T-Score = 1.795 + (3.512*Scale score) + (0.375*Age)

SPART-D T-Score = 11.951 + (3.773*Scale score) + (0.181*Age) + (3.914*Gender) + (− 0.764 *Education)

SDMT

SDMT T score = 36.669 + (4.072*Scale score) + (0.005*Age²) + (− 4.032 *Education) + (0.106*Education²)

SDMT T score = 16.655 + (4.955*Scale) + (0.379*Age) + (− 3.914*Education) + (0.098*Education²)

WLG

WLG T score = 22.168 + (3.580*Scale score) + (− 0.040 *Education²)

WLG T score = 28.116 + (3.828*Scale score) + (− 2.589*Gender) + (− 1.207 *Education)