Dr. LeCap is taking brain scans of people while they do simple cognitive tasks. He notices that the event-related potential waves of 20 of the participants occurred significantly faster than the waves of the other 50 participants. Dr. LeCap could conclude from this finding that the 20 people with faster event-related potential waves were ____________ than the 50 people with the slower waves.
A) more intelligent
B) more highly motivated
C) working harder and more intelligent
D) more highly motivated and working harder

Question

Quizplus · Accepted Answer

The faster event-related potential waves indicate that the 20 participants were processing the cognitive tasks more efficiently, which suggests that they were more intelligent than the 50 participants with the slower waves.

Dr LeCap Is Taking Brain Scans of People While They