What Is the Major Characteristic of a Retrospective,or Ex Post

question 27

Multiple Choice

What is the major characteristic of a retrospective,or ex post facto,study?

• A) Obtaining informed consent is not an important issue in a retrospective study.
• B) Maximal opportunity to manipulate the independent variable exists in a retrospective study.
• C) In a retrospective study, the dependent variable is measured multiple times to examine the effect of maturation.
• D) The dependent variable has already been affected by the independent variable in a retrospective study.