Quiz 5 flashcards
Which of the following is not a type of endogenous change that may alter the naturally development of subjects in a study?
Hawthorne effect
In order to avoid treatment contamination, a researcher should do which of the following?
Ensure that comparison group members are unaware of the treatment being given to the experimental group.
A repeated-measures panel design is meant to accomplish which of the following?
To determine the effect of treatment over finely tuned time periods.
What makes an ex post facto control group design different from other quasi-experimental methods?
Treatment has already occurred.
A group of control subjects come to know that another group exists, and that they are receiving some form of treatment while their own group is not. They become demoralized, and their scores on further tests suffer accordingly. This is an example of:
Contamination
Which of the following is not a cause of treatment misidentification?
The control group compensates for not receiving treatment.
Which of the following is not a typical problem with longitudinal research?
Compensatory rivalry.
Selection bias occurs when:
Groups differ because subjects are in treatment because they posses a particular characteristic.
Suppose a subject takes a pre-test on a day where they are not in their normal frame of mind, and thus perform quite poorly, then take a post-test when they are closer to their normal state of being, and score much higher. This process is known as:
Regression to the mean
In the midst of a study, a significant event occurs, and post-test results change considerably compared to pre-test results for all groups involved. This is known as:
History effect.
