Hello Ceren,

as far as I know, you cannot do that in AMOS. Two options:

a) use lavaan/R and use the DWLS estimator. This results in a latent continuous response variable that is connected with the binary observed variable

b) use base R and conduct two models: The x-->m logistic regression and the m-->y regression using regular OLS. Then use the mediation package an the equally names mediation function to combine both and get an indirect effect. I recently found the latter quite attractive as it is very flexible. A disadvantage is that you have to find other ways, to get a model fit.

Imai, K., Keele, L., Tingley, D., & Yamamoto, T. (2010). Causal mediation analysis using R. In D. V. Hrishikesh (Ed.), Advances in social science research using R (pp. 129-154): Springer.

I can send you a pdf of the chapter if you send me a mail/pn.

Best,

Holger

I think it is possible to include as a route model with of total scores.

Holger Steinmetz thanks Holger, but R is out of my league now. I will try to change the model:) Thank you again