1. The two words that best capture the essence of experimental method are:

a) manipulation and control

b) correlation and confusion

c) observation and non-interference

d) boring and irrelevant

2. Which is an appropriate "level of analysis" in psychology?

a) behavior, social, and neurochemical

b) behavior

c) neurochemical

d) social

3. A description of a psychological property or construct in concrete terms is

a) an operational definition

b) a "placebo effect"

c) pseudoscience

d) impossible

4. An "action potential" refers to:

a) the range of movement a neuron has

b) what the motor cortex has

c) the secretion of neurotransmitters from the axon buttons

d) an electrical signal that travels down the length of the axon