Which quantitative test on spss do i use if i have sex and cities as my independent variables and my IQ as a dependent variable? This is the question on the worksheet

"intelligence quotients sampled from five capital cities around the globe. Sex, total brain volume, head circumference and intelligent quotients (IQ) are given for 15 individuals. Brain measurements were inferred from MRI scans.

a) Using city and sex as independent categorical variables, conduct an analysis of IQ