chap 5 text

Question 1

a confound is a :

Answer 1

extraneous variable that varies systematically with the independent variable

Question 2

Experimental research on the effectiveness of a treatment requires both

Answer 2

a treatment condition and a control condition

Question 3

a treatment and control condition can also be:

Answer 3

a no-treatment control condition, a
placebo control condition, or a wait-list control condition.

Question 4

Experiments can be conducted using either between-

Answer 4

subjects or within-subjects designs

Question 5

Studies are high in internal validity to the extent that the way they are conducted supports the

Answer 5

conclusion that the independent variable caused any observed differences in the dependent variable

Question 6

Experiments are generally high in internal validity because of the

Answer 6

manipulation of the independent variable and control of extraneous variables

Question 7

Studies are high in external validity to the extent that

Answer 7

the result can be generalized to
people and situations beyond those actually studied.

Question 8

several effective methods you can use to recruit research participants for your experiment, including

Answer 8

formal subject pools, advertisements, and personal appeals

Question 9

Field experiments require well-defined

Answer 9

participant selection procedures

Question 10

It is important to standardize experimental procedures to

Answer 10

minimize extraneous variables, including experimenter expectancy effects