Comment This computes what should happen on sheet 3 of the paper Stroop and then computes the interference score. compute pred=(s1*s2)/(s1+s2). compute inter=pred-s3. Comment This creates the handedness store (handed) from two prior calculations you can ignore. COMPUTE LeftH = ((sum(wrlch to bolch))/20)*-100 . COMPUTE RightH = ((sum(wrrch to borch))/20)*100 . compute handed=lefth+righth. EXECUTE . Comment This takes the computer Stroop data and calculates what those results predict for the same person on the paper Stroop. COMPUTE pt1score = 45000/part1 . VARIABLE LABELS pt1score 'Predicted Score on Traditional Stroop Sheet 1 by Computer Stroop Part 1' . EXECUTE . COMPUTE pt3score = 45000/part3 . VARIABLE LABELS pt3score 'Predicted Score on Traditional Stroop Sheet 2 by Computer Part 3' . EXECUTE . COMPUTE pt4score = 45000/part4 . VARIABLE LABELS pt4score 'Predicted Score on Traditional Stroop Sheet 3 by Computer Part 4' . EXECUTE . Comment In parallel with the paper Stroop, here what should happen on page 4 is calculated and then the interference score. COMPUTE comppred=(pt1score*pt3score)/(pt1score+pt3score). COMPUTE compintr=comppred-pt4score. EXECUTE.