In a Study by Pilcher & Walters (1997), Students Were

In a study by Pilcher & Walters (1997) , students were deprived of a night's sleep and then asked to perform a critical thinking task. When compared to non-sleep deprived students, those students who missed a night's sleep

A) performed better on the critical thinking task, but incorrectly perceived that performance and concentration were impaired.
B) performed more poorly on the critical thinking task, but believed that they performed better and concentrated harder.
C) performed better on the critical thinking task, and correctly perceived that their performance and concentration were superior.
D) performed the same on the critical thinking task as the non-sleep deprived group.
E) performed more poorly on the critical thinking task, but correctly perceived that performance and concentration were impaired.