Author Question: In an experiment, subjects are given a pretest in an effort to assess their attitudes about a new ... (Read 47 times)

sammy · **on:** Aug 13, 2018

In an experiment, subjects are given a pretest in an effort to assess their attitudes about a new federal sentencing law that Congress is debating. Subjects assigned to the experimental group are given a series of lectures by experts on the impact the new law will have on prison populations. Immediately after the last lecture, a posttest is given to measure any attitude changes. Anticipating what the test is designed to measure (because of the lectures), those in the experimental group are subject to the threat of:

a. diffusion
b. statistical regression
c. instrumentation
d. testing

Question 2

Maturation as a threat to internal validity in experiments refers to:

a. some subjects are older than others
b. as people grow and change, results can be impacted
c. only subjects over the age of 21 are mature enough to be part of an experiment
d. none of the above