After surgery, the patient known as H.M. retained his old memories but could no longer form new memories. What part of his limbic system was removed?
a. cortex
b. hypothalamus
c. hippocampus
d. thalamus
Ans: c. hippocampus
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According to self-determination theory, when you freely choose to do something for enjoyment or to improve your abilities, your motivation is usually
If X = experimental treatment and O = pretest or posttest observation, then "O X O X O X O" represents the _____ design
a. repeated treatment b. mixed factorial c. regression discontinuity d. interrupted time series
The goal of experimental control is to
a. emphasize description rather than explanation. b. prevent confounding variables from affecting the dependent variable. c. make simple research appear complicated. d. determine whether the dependent variable causes the independent variable to change.
Natural (or quasi-) experiments differ from real experiments in the sense that
a. the IV is selected but not manipulated or controlled. b. both variables are IVs. c. experimental control is strengthened. d. causes of behaviors are identified more clearly.