I am trying to test to see if there is a difference between the means in two populations.

Population A: 100 people, controls

Population B: 330 people, anorexic

I want to see whether they differ on a measure of body checking (ex: pinching fat). I'm using SPSS.

Originally I did an independent samples t-test. Levene's test was significant, so I just read along the line for 'equal variances not assumed'.

But now I want to control for age and BMI (Body Mass Index). I was going to use an ANCOVA for this. BUt my variances are very unequal, and there is no option in the output for when that happens.

From everything that I've read, an ANCOVA is not appropriate due to my large discrepancy in variances.

WHat are my options now? Is there any way to compare the means of these two populations with unequal variances? My prof mumbled something about a regression, but I'm not sure that would be appropriate due to the unequal variances?

Thank you!