d. A life history
13. Which of the following threats to internal validity is an example of the problem of
experimental mortality?
a. During the implementation of a study on violence in a prison, the prison administrator
is replaced
b. During a study, subjects become tired and their response time is affected
c. During a study in which students interview prison inmates, a number of student
interviewers graduate and must be replaced
d. During a study comparing two groups of prison inmates, some of the members of one
group are released on parole
14. Which of the following threats to external validity is an example of the problem of reactive
effects of experiment arrangements?
a. A pretest was conducted that sensitized the subjects to the topic of the research, so that
they may have responded to the treatment differently than would individuals who did not go
through the pretest
b. Defendants in a county court are allowed to choose whether or not they would like to
participate in a study to determine the effectiveness of a new diversion program
c. Inmates in a prison are aware that they are part of a study on prison violence and
modify their behavior as a result of this awareness
d. Inmates in a prison are participating in two research studies and are simultaneously
exposed to two different experimental interventions
15. A(n) _______ research design is particularly useful when some aspects of the social setting
are beyond the control of the researcher.
a. controlled experiment
b. one-group pretest-posttest
c. quasi-experimental
d. case study