There are a number of different checklists you can use to aid you in source evaluation. Examples include:

• CRAAP (currency, relevance, authority, accuracy, purpose)
• STAR (sufficiency, typicality, accuracy, relevance)
• 5 Ws (Who, What, Where, When, Why)

It's a good idea to develop your own criteria for evaluating sources. Consider:

• Your assignment requirements
• The original context of your sources (who were they published for, and for what purpose?)
• The source's relevance to your topic 
• The source's use of evidence to support claims - does it provide citations or background? Could you reproduce the author's research process?