Discussion Post

Discussion Question:
Please provide at least a 250-word response.
When identifying a sample for research in your domain, what should be some ethical safeguards to take into consideration if your work would require data from certain vulnerable populations, such as children, pregnant mothers, prisoners, cognitively or physically impaired, or culturally isolated groups? Address each group individually.
Discussion Question:
Please provide at least a 250-word response.
What is construct validity and why is it important?  What is meant by external validity and why is it important?