According to the Oxford English Dictionary, bias is defined as, "A tendency, inclination, or leaning towards a particular characteristic, behaviour, etc.; a propensity. Also: something, esp. an action or practice, to which a person is inclined or predisposed." (https://www.oed.com/dictionary/bias_n?tab=meaning_and_use#1320706760)
Since bias is part of human nature, it cannot be totally avoided. So, how do we deal with it as researchers?
Bias enters research at all stages and often influences the magnitude and direction of results. To obtain the least biased information, researchers must acknowledge the potential presence of biases and take steps to avoid and minimize their effects. Equally, in assessing the results of studies, we must be aware of the different types of biases, their potential impact and how this affects interpretation and use of evidence.
Accuracy
Just because information is published in a book, journal or on the web, does not guarantee that it is accurate.
Questions to Ask:
Currency
The currency of a resource is important because information from older sources may be outdated, inaccurate or superseded by more recent publications.
Questions to Ask:
Coverage
Think about if the information adequately covers the subject. Look for a statement describing the purpose of the source.
Questions to Ask: