Before you start evaluating your resources, make sure that you know exactly what is required from you. Here are a few questions you can ask to help assess the relevance of a resource:

Is it the appropriate type of resource for your assignment? For example, have you been asked to find a particular type of resource such as a journal article or an official publication?

Does the title indicate that the item is too specific or not specific enough? Is there a subtitle with more information to help you decide?

Who is the intended audience? Is it a scholarly resource or a popular work?

Is the level too basic or too advanced for your requirements?