Chapter 10

Question 1

attrition

Answer 1

decrease in numbers

Question 2

instrumentation problem

Answer 2

measuring problem

Question 3

internal validity

Answer 3

the degree to which a study’s results can be trusted to establish a cause-and-effect relationship

Question 4

within subjects

Answer 4

asked questions during

Question 5

between subjects

Answer 5

asked questions before and after

Question 6

history threat to internal validity

Answer 6

any event other than the independent variable that occurred in or out of the experiment that may account for the results of the experiment

Question 7

sensitization effect

Answer 7

when a repeated exposure to a stimulus increases a behavioral response

Question 8

carryover effect

Answer 8

an effect of being tested in one condition on participants’ behavior in later conditions

Question 9

practice effect

Answer 9

participants perform a task better in later conditions because they have had a chance to practice it

Question 10

a t-test for dependent variable is also known as

Answer 10

paired-samples t-test

Question 11

paired-samples t-test

Answer 11

compares the means of two measurements taken from the same individual, object, or related units