1.  Are your observations objective?

2.  Have you observed enough?

3.  Are your observations recent?

4.  Are your observations representative of the situation?

5.  Do your observations adequately justify your conclusions?

6.  Have you read widely enough to see if experts agree?

7.  If experts disagree, will you acknowledge this and explain your preference?

8.  Have you verified your experts' credentials so you can present them in your speech?