Researchers wanted to see if adults were actually afraid of the dark by exposing them to different levels of light in a room while measuring their heart rates. In this experiment, what are the heart rates of the participants?
A) the dependent variable
B) the independent variable
C) the control group
D) the experimental group
A) the dependent variable
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While ____ involves the stimulation of sense organs, ____ involves the selection, organization, and interpretation of sensory input
a. perception; sensation b. sensation; perception c. activation; sensation d. activation; perception
You should state your ______ according to the design of your study.
A. rejected hypothesis B. alternative hypothesis C. null hypothesis D. accepted hypothesis
Raul performs a research study at Norshore High School and observes that there is a negative correlation between popularity and academic success. Which statement can be inferred from his observation?
A) Students who do well academically are more likely to be popular. B) Students who don't do well academically are less likely to be popular. C) Students who do well academically are less likely to be popular. D) Students who don't do well academically are more likely to be in the same social group.
The hypothalamus monitors the levels of sex hormones in the bloodstream and reduces its production of GnRH when the sex hormones reach an optimal level. Which of the following metaphors best suits this description?
a. Answering machine b. Burglar alarm c. Thermostat d. Fridge light