Age or years in workforce are not nominal (categorical) variables,there are 6 independent variables (age, gender, years in workforce, etc.) all nominal.
at least they are ordinal.
How are they scaled? Ordinal? Interval?Then there are 7 different dependent variables, which are competencies scored on a scale.
It depends on your research question. By the way, did you meanWhat test should I run to see if the demographics are affecting the competency scores? Right now I am considering running each independently vs. a multivariate regression analysis.
multiple regression (several predictors in one analysis)?