hi, i have a question, if i find the F value on SPSS and then on excel i use the function =T.DIST(F;DFbetween;DFwithin;TRUE), could you explain me why many exercise solve this put =2*T.DIST(F;DFbetween;DFwithin;TRUE) or also =2*(1-T.DIST(F;DFbetween;DFwithin;TRUE)