A psychologist shows participants films designed to make them either happy or sad. She measures the participants' brain activity levels with an electroencephalograph (EEG) during the films. This psychologist probably is conducting research on:

Aresearcher conducts a focus group to learn about attitudes towards hygiene and disease prevention. two weeks after the focus group, the researcher learns one of the subjects had a heart attack at home and was hospitalized, but made a full recovery. based on dhs regulations, the researcher report this event to the irb? no, this does not need to be reported since the subject had the heart attack when they were home, not at the focus group. no, this does not need to be reported since it is unrelated to participation in the study. no, this does not need to be reported because two weeks have passed. no, this does not need to be reported since the subject recovered.

What do you know about harriet tubman?

In what region did the industrial revolution began