Greg is using the most frequently used psychoactive drug in the United States, which is
a. marijuana.
b. cocaine.
c. alcohol.
d. caffeine.
ANSWER: d
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An experiment on the word-superiority effect would use which of these procedures?
a. Record how fast someone can identify a letter on a screen alone or as part of a word. b. Measure how well someone can complete a motor task with or without conversation. c. Test how well someone can recognize pictures that do or do not have verbal labels. d. Test how well someone can remember lists of words or nonsense strings of letters.
Our perceptions are typically exact replicas of the original stimuli.
Answer the following statement true (T) or false (F)
What is the main advantage of experimentation over correlation in determining causal relationships?
A) Experimentation offers the possibility of controlling for all potential third variables at once. B) Experimentation involves multiple variables, whereas correlation involves only two variables. C) Experimentation systematically controls third variables one at a time, in sequence. D) Experimentation uses the matched pairs and matched samples techniques to control for specific third variables.
What function does the retina serve?
A) the retina contains the visual receptor cells. B) the retina focuses light coming in the eye through the lens. C) the retina determines how much light is let into the eye. D) the retina determines which rods and cones will be activated by the incoming light. E) the retina connects the two optic nerves and sends impulses to the left and right visual cortices.