Can I compare different dependent variables?

Can I compare different dependent variables?

I am attempting to compare results of a study I am performing on marching
bands.  I have scores of over 200 bands from 5 different states.  Each
state uses a different scoring system although they are all based upon 100
points They are different in that some give equal emphasis to marching and
music (50%/50%), while others split it 60/40 or 55/45.  The judges for the
various contests were of equal ability but were not the same for each
state.  How do I tell if the states are comparable?  If they are not, can I
make them comparable.  How?

--
Mike Hewitt
University of Arizona

Dear newsgroup members,

We have a problem comparing the strength of regression coefficients of the
same independent variable in models with different dependent variables.
Below I will show two (related) examples:

Example 1.
Cross-sectional design. Dependent variables: two speed tasks (number of
seconds needed is recorded; the lower, the better, the faster) and tasks
differ in complexity/difficulty. Independent variable: age (0: young and 1:
old). Question: do older people particularly differ from younger people in

Example 2.
Cross-sectional design. Dependent variables: one speed task (number of
seconds needed is recorded; the lower, the better, the faster) and a memory
task (number of words reproduced after presentation; the higher, the better
(the memory)). Independent variable: age (0: young and 1: old). Question: do
older people particularly differ from younger people in the speed task (more
so than in the easy task)?

How can these effects of age be compared? In the first example both
dependent variables are in seconds, in the second the scales differ
completely. It seems to me that standardisation of at least the dependent
variable is needed? But how to test for a significant difference in the
effect of age.

Some have suggested MANOVA or GLM repeated measures designs. Is this the way
to go? And, foremost, should at least the dependent variable be standardised
then?

Thank you for any information.

Best regards,

Hans Bosma