"Multi-dimensional" scale

So since our scale has which aspects show a correlation to males and which to females we are looking at a single scale with the traits that show the difference at opposite ends of the scale for correlation. It would not be possible to score high on masculinity and femininity since with a female if they scored high on masculine items then that trait would not predict gender. This would make it a single dimensional scale, maybe.

Yep!

So to reiterate, our scale is uni-dimensional because after all it represents a single line of measurement; that is, correlations of preferences, hobbies and occupations only exist on a single line between polarities of maleness and femaleness. We have, in effect, a “single rule” (Trochim, 2008).