Prepare a discussion posting of at least 500 words that answers the following questions:

How do you describe the concepts of validity and reliability?
From what view did you use in providing that description?
Note:

Need to write the discussion by using both the chapter material which is attached in the post as well as additional external sources.

Need to use intext references in the text

Need three references listed:

One refers to the chapter (Arbnor and Bjerke) and two external peer-reviewed sources.