Jay Tanzman got chewed out by his boss for averaging a 7 point ordinal scale. Generally it is not a good idea to argue with your boss, but perhaps you might ask what was the grade point average that he or she received in college. When you hear the response, then ask if the grading scale A, B, C, D, F is ordinal or interval.
A possible compromise is to model the data as if it were interval and then model it as if it were ordinal. If the two models are reasonably similar, good. If they differ, that is still good, as it allows you to then explore why the two models differ.
Steve Simon, [EMAIL PROTECTED], Standard Disclaimer.
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