Read through your articles and look for differences in their titles, structure, length, authors, language, and appearance to help you identify the differences between your popular source and your peer-reviewed journal articles.
The C.R.A.A.P. criteria below are also useful for evaluating and selecting sources for your university assignments:
Currency: The timeliness of the information 
	- When was the information published or posted?
 
	- Has it been updated?
 
	- Do you need the most current, up-to-date information on your topic?
 
Relevance: The information meets your assignment needs 
	- Does the source meet your assignment requirements?
 
	- Does the information directly relate to your topic?
 
	- Does it help you answer questions?
 
	- Have you looked at other sources to find the best one?
 
Authority: The source of the information 
	- Who is the author or publisher?
 
	- Are they qualified to write about this area?
 
	- If it's a website, what does the URL say about the source, i.e. .com .edu .gov .org?
 
Accuracy: The reliability and correctness of the information 
	- Is the information supported by citations or other evidence?
 
	- Can you verify the information with another source?
 
	- Is the author or publisher biased or unbiased? 
 
Purpose: The reason the information exists
	- What is the purpose of the information? To inform, sell, persuade, or entertain?
 
	- Is the information given a fact or an opinion?
 
	- Is the author or publisher biased or unbiased?