Ambady and colleagues were able to conclude that the thin-sliced impressions formed by their participants were based on meaningful information because a. their ratings based on 30-second clips were...

Ambady and colleagues were able to conclude that the thin-sliced impressions formed by their participants were based on meaningful information because

a. their ratings based on 30-second clips were little different than their ratings based on 6-second clips.

b. their ratings of the silent video clips corresponded strongly with the ratings that the instructors

received from their actual students at the end of the semester.

 c. ratings were similar for silent video clips and for the same video clips when shown with audio.

 d. while the thin-sliced video clips were brief, it took participants a relatively long amount of time to come up with ratings of the instructors they viewed.