Even if a piece of information is of good quality, it may not be relevant to the question you are asking
or the scope of your research. There are a number of ways in which it may or may not be relevant to your needs:
Geographical - it may discuss countries or areas in which you are not interested
Level - it may be too detailed/specialised or too general/simple for the level at which you are working
Emphasis - it may discuss a different aspect of the topic you are researching
Adapted from the Open University's SAFARI tutorial by Cardiff
University, with permission from the Open University Library.