APA Format and use of Journal articles are mandatory

a. Demographic data are collected for every study. What is the purpose of describing the demographic data in resarch? (500+ words, APA style, at least 1 journal article)

b. There is a tendency for novice researchers to develop their own instrument if they cannot readily find one. How might you respond to a peer or manager who asks you to help develop a new tool to collect patient data on anxiety prior to cardiac catheterization? (500+ words, APA style, at least 1 journal article)