Carlos is participating in an experiment where the researcher is having him adjust the brightness of a light bulb until Carlos can just barely detect the presence of light.
Based on this description, it appears as though the researcher is measuring Carlos'
a. electroencephalogra ph (EEG) pattern.
b. absolute threshold.
c. visual scanning.
d. difference threshold.
Question 2
According to the current APA guidelines, __________ is the accepted term when referring to human beings being tested in the research, whereas __________ refers to the case when non-human animals are being tested.
a. volunteers; subjects
b. participants; subjects
c. subjects; volunteers
d. subjects; participants