What did Bouchard find in his study?
A. Identical twins varied greatly in behaviors.
B. Identical twins varied greatly in personality traits.
C. The twins were identical in behaviors.
D. The twins were very similar in personality traits.
Answer: D
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Karen agrees to replace the toilet paper when it runs out if her roommate, Susan, will wash her dirty dishes every evening after dinner. This is an example of
a. latent learning. b. escape learning. c. applying reinforcement. d. giving praise. e. contingency contracting.
Which of the following is not one of the assumptions of the t-test for independent samples?
a. The populations of raw scores form at least a roughly normal distribution. b. There are two independent samples of interval/ratio scores. c. There is homogeneity of variance. d. The standard deviation of at least one of the populations is known.
Since World War II, the lethal potential of nuclear weapons and nuclear power has been manifested in
a. the nuclear power plant accident at Three Mile Island in Pennsylvania in 1979 b. the results of a natural disaster in Japan in 2011 c. the explosion in the nuclear reactor at Chernobyl in Ukraine in 1986 d. all of these e. none of these
Answer the following statements true (T) or false (F)
1. In observational research, scientists are conducting observations when they focus on one person or just a few individuals. 2. When participants have an equal chance of being assigned to either group being studied, they are being randomly assigned. With random assignment, all participants have an equal chance of being assigned to either group. 3. Between signals, the neuron’s membrane’s potential is held in a state of readiness, called the membrane potential. 4. The right hemisphere of the brain controls the right half of the body and the left hemisphere of the brain controls the left half of the body. 5. While disruptions in circadian rhythms can have negative consequences, there are things we can do to help us realign our biological clocks with the external environment.