Dear SPM experts, We want to make a second level GLM analyze (SPM8) of fMRI results using two sample t-test with age, education, sex as covariates. We added covariates but there is also an ANCOVA option. Do we have to enable this option (ANCOVA) or not? Or is it enough only to insert covariates. Whats the meaning of enabling this option (ANCOVA)? Thanks for your help, Elif