Gutnre wrote:show us your excel if-function, then its more concrete.
i don't think its a problem though.
A variable has 3 categories -> X, Y, Z
I create 2 dummies: for X and Y
Used formula for Dummy X: =IF(D7="X";1;0)
Used formula for Dummy Y: =IF(D7="Y";1;0)
But I'm not sure how SPSS 'can see' that there is another category, called Z. Thats why I was wondering whether created dummy variables in SPSS are a formula rather than a score or not?