A research assistant is running a study to determine whether cats are smarter than dogs. To test this, he puts a treat under one of three cups and switches the cups around in front of both the cats and the dogs. He records the number of times the animals were able to successfully choose the correct cup on the first try. Which of the following is the dependent variable in this study?
A. Treats
B. Number of successes
C. Cats
D. Species of animal
Answer: B
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Which of the following is true of the comparative study by Segall and colleagues between the Mueller-Lyer illusion and horizontal-vertical illusions?
a) The horizontal-vertical illusion was only limited to the primitive groups. b) The horizontal-vertical illusion was only limited to the industrialized groups. c) The Mueller-Lyer illusion was stronger for the non-industrialized groups. d) The Mueller-Lyer illusion was stronger for the industrialized groups.
You go to a therapist because you are having trouble finishing your schoolwork. Your therapist suggests that you gradually increase your study time by five minutes per evening. In addition, after each hour of studying, you are told to reward yourself with a five-minute rest. Your therapist is using the operant conditioning method of
a. successive approximations. c. negative reinforcement. b. token rewards. d. study skills training.
Disjunction of the 21st chromosome that can lead to Down syndrome has been found to be related to a. paternal age
b. maternal age. c. multiple codon repeats on the X chromosome. d. the inability to metabolize phenylalanine.
The ability to predict a stressor helps to
a. reduce the stress. c. increase anxiety about the stress. b. increase the stress. d. activate stress expectancy.