This Guide will focus on evaluating information sources (scholarly and non-scholarly) for Authority, using criteria that include the context of the information that is produced, and the purpose for which it will be used.
Try these sources:
A well cultivated critical thinker:
Critical thinking is, in short, self-directed, self-disciplined, self-monitored, and self-corrective thinking. It presupposes assent to rigorous standards of excellence and mindful command of their use. It entails effective communication and problem solving abilities and a commitment to overcome our native egocentrism and sociocentrism.
Source: Critical Thinking Community