Which of the following is not a type of validity?

Edgar is going to be presenting a training program to a group of new employees. This vocal characteristic of his will negatively impact their comprehension of his presentation

a. dysfluencies b. monotone pitch c. mispronunciations d. poor vocal quality

Filmmaker _______________________ made the movie Nanook of the North, which is regarded as a key landmark in the development of non-fiction filmmaking traditions.

A. Erroll Morris B. Robert Flaherty C. Allakariallak D. Abbas Kiarostami