find THREE quantitative articles

Hello. Below is the information for the paper. My professor said the length of the paper doesn’t matter as much as the content, but I’m guessing at least 3 pages, APA format, and three sources. I will let you know if my professor gives any more information. Thanks! Attached is the information from our data collection and methods chapter in our textbook; it might help.
This specific assignment – “This report is about the “Data and Sample” section of research. For this assignment, you need to find THREE quantitative articles and read their Methods section and report the data and sampling method they have used to conduct their research.”
Guidelines for this assignment and others – “The purpose of the assignment is to help you understand the research process (Literature review, data collection, sampling, etc.,) in criminal justice. For each “Article Report” assignment you are required to find at least three peer-reviewed article and write a report about that article. For example, the first article report assignment is about Introduction section of research. For this assignment, you need to find three articles and read their Introduction section and report what was the main question of the paper, the necessity of the topic, the way the author introduces the topic, and the general structure of the introduction section in each of the papers.”