The Motivating Potential Score associated with the Job Characteristics Model was originally calculated with this formula:

$($SV$+$TI$+$TS$)/3*$ Autonomy $*$ Feedback

$\frac{SV+TI+TS+A}{4}*$ Feedback

$($SV$+$TI$+$Autonomy$)/3*$ TS $*$ Feedback

Feedback$)/4*$ Autonomy