Question 1

Studies with rats raised in enriched environments have shown that their brains

Accepted Answer

A) have larger synapses 
B) have more branching of dendrites 
C) are heavier 
D) all of the above

Question 2

If the savings in a serial learning experiment is 75% after a delay of one hour,the savings after a delay of two hours will probably be

Accepted Answer

A) more than 75% 
B) more than 50% 
C) about 50% 
D) less than 50%

Question 3

The activity of a cone on the retina can provide other parts of the visual system with information about

Accepted Answer

A) the color of a stimulus 
B) the size of a stimulus 
C) the shape of a stimulus 
D) all of the above

Question 4

A neuron's transmitter is released from its

Accepted Answer

A) cell body 
B) axon terminals 
C) dendrites 
D) nucleus

Question 5

Skinner has argued against the use of intervening variables in psychological theories

Accepted Answer

A) because they make the theories more complex 
B) because he believed that the causes of many behaviors can be found in the environment,not inside the individual 
C) both a and b 
D) neither a nor b

Question 6

Ebbinghaus's results suggest that continuing to recite a poem after you have learned it perfectly

Accepted Answer

A) will improve your ability to remember it later 
B) will harm your ability to remember it later 
C) will have no affect on your ability to remember it later 
D) will interfere with your ability to learn other poems

Question 7

A psychologist develops a theory that failure produces frustration,and frustration frequently leads to aggressive behavior.In this theory,frustration is

Accepted Answer

A) an independent variable 
B) a dependent variable 
C) an intervening variable 
D) a confounding variable

Exam 1: History, background, and Basic Concepts