HSPQ responses of 1836 male and female adolescents were grouped to produce 42 marker variables, three for each of the 14 factors contained in the HSPQ. Subjects were divided into two randomly equivalent subsamples of males and two of females. The four data sets were separately factored using a multiple group solution. Resulting factor loading pattern and factor intercorrelation matrices were highly similar among subject groups. The general outcome was interpreted as supporting the factorial structure upon which the HSPQ is based. Implications of these results for current issues in test construction are briefly discussed.