The retina has three types of color receptors,each especially sensitive to one of three colors.The retina has no separate receptors especially sensitive to

A) green.
B) blue.
C) yellow.
D) red.

Which of the following individuals is credited with discovering classical conditioning?

A) Carl Rogers.
B) Ivan Pavlov.
C) Sigmund Freud.
D) Abraham Maslow.

H. M., the famous neurological patient who has serious and permanent anterograde amnesia, can remember some things. For the most part, these things are __________.

A) aspects of declarative memory acquired prior to his surgery and procedural memory of things learned both before and since his surgery
B) procedural memory for most things acquired prior to his surgery and episodic memory of things learned both before and since his surgery
C) procedural memory for most things acquired prior to his surgery and semantic memory for events that have happened since his surgery
D) verbal memories prior to his surgery and episodic memories since then

Schemas that we have for particular individuals are called _____,while schemas that he have about whole groups of people are called _____.

A) categories;scripts
B) scripts;categories
C) stereotypes;impressions
D) impressions;stereotypes

In arguing that American psychology should focus more attention on people from other regions of the world,Arnett (2008) points out that people living in the United States constitute only about ______ of the world population.

A) 5%
B) 20%
C) 30%
D) 25%

If a person receives the chemical L-dopa, a precursor of dopamine, it reduces the symptoms of Parkinson's disease. However, L-dopa may increase symptoms of schizophrenia. What can reasonably be concluded from this?

A) L-dopa causes schizophrenia.
B) Excessive dopamine produces schizophrenia-like symptoms.
C) Antipsychotic medication decreases the amount of L-dopa in the brain.
D) Antipsychotic medication increases the amount of dopamine in the brain.

The minimum intensity of physical stimulation required to produce any sensation at all in a person is the ________ threshold.

A) minimum
B) difference
C) noticeable
D) absolute

A dealer persuades a customer to buy a new car by reducing the price to well below that of his competitors. Once the customer has agreed to buy the car, the terms of the sale are shifted by lowering the value of the trade-in and requiring the purchase of expensive extra equipment. Now the car costs well above the current market rate. This is an example of the __________ technique.

A) low-ball
B) foot-in-the-door
C) primacy
D) bait-and-switch