In a Recent Study That Tested Differences in Metacognition Between

In a recent study that tested differences in metacognition between those with high ability and those with low ability, Teo concluded that there were not differences between these groups. In fact, however, the low ability students were actually significantly better at monitoring their learning. Teo's conclusion represents

A) a Type I error.
B) a Type II error.
C) both a Type I and a Type II error.
D) a correct decision.