Suppose a researcher shows the exact same videotape segment to three different groups of subjects in an experiment, and manipulates the volume of the video's narration across the three different groups (soft, medium, or loud)
In this experiment, the __________ represents an example of holding conditions constant.
a. loudness of the narration
b. age of the subjects
c. independent variable
d. videotape segment
d
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Dr. Heritos watches with some amusement as her students struggle to find the right answers on their midterm exam, and her mind wanders to the parts of the brain that are involved in memory. As she sits in her chair proctoring the exam,
which part of her brain is most active while she retrieves long-term memories? a. The frontal lobe b. The parietal lobe c. The temporal lobe d. The occipital lobe
It is possible to hear a struck tuning fork because it
a. causes electromagnetic pulses. b. causes compressions and rarefactions in the air. c. changes the shape of air molecules. d. stimulates the vestibular system.