Please answer the following two discussions with one APA citation fit each:
-In order to be valid, a test must be reliable; but reliability does not guarantee validity. Explain why this state is true or false and give examples to support your claims.
-When planning on completing research you must include positive ethical decisions about many different aspects of your study. What area some areas of concern that the principal investigator of a study must keep in mind and how could a wrong choice affect the validity of such study?