Breadth and quality of entries on your bibliography.

Academically rigorous research was required for this (and your next) speech.

Note Symbol Key: Interpretation
! =

SUPERIOR

The breadth and quality of entries on your bibliography indicated extensive and rigorous research.
+ =

EFFECTIVE

The breadth and quality of entries on your bibliography indicated good research.
+ =

PROBLEMATIC

The number or quality of entries on your bibliography suggests more academic research should be done.
– =

DETRIMENTAL

There was not enough academic research. This seriously undermines your credibility as a student researcher.