Which of the following makes it difficult to make causal interpretations of experimental results?
A) independent variables
B) dependent variables
C) constant variables
D) confounded variables
E) none of the above
Answer: D
Psychology
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Your brain waves are being monitored in a sleep laboratory. Although you are drowsy, you are not yet asleep. What brain waves will be detected at this point?
a) beta b) delta c) sigma d) alpha
Psychology
When you look directly at an object, the image is focused on the center of your __________
a) optic nerve. b) optic chiasm. c) lens. d) fovea.
Psychology