Exam 3: Research Design: the Experimental Model and Its Variations

Which of the following points to the tendency of pretests to destroy the naiveté of respondents with respect to the variables)being studied and decrease or more predictably increase the subjects' awareness or sensitivity?

Which of the following refers to accuracy in the ability to generalize or infer findings from a study to a larger population?

Which of the following refers to accuracy within the study itself?

Which of the following are examples of external factors?

Longitudinal designs involve studies of one group at one time and usually refer to a representative sample of this group.

Which of the following is described as any variables other than X the treatment)that may be responsible for the relationship?

Compare and contrast the one-group before-after design and the two-group ex post facto design.

__________ refers to biological or psychological changes in the respondents during the course of study that are not due to the experimental variable.

Which of the following refers to biological or psychological changes in the respondents during the course of study that are not due to the experimental variable?

Which of the following refers to the loss of subjects over the course of time?

Which of the following is described as a false relationship that can be explained away by other variables?

Which of the following refers to the bias and foreknowledge introduced to respondents as a result of having been pretested?

__________ is a false relationship that can be explained away by other variables.

__________ refers to other specific events that may have taken place during the course of the study and may have produced the results.

Discuss the three general types of experimental designs.

__________ involves changes in the measuring instrument from the beginning or first period of evaluation to the second,later,or final evaluation.

The classical experimental design,which serves as a prototype for our discussion of all other research designs,contains three elements;equivalence,pre-tests and post-tests,and experimental and control groups.

Which of the following refers to an incorrect assumption that because one variable precedes another in time,it is the cause of the outcome?

Which of the following involves changes in the measuring instrument from the beginning or first period of evaluation to the second,later,or final evaluation?

Randomization deals with assuming equivalence by selecting subjects on the basis of matching certain characteristics such as age,sex,and race.