What is critical thinking and why is it important to the field of psychology?

Critical thinking is firstly having the knowledge of the biases human cognitions are prone to and to objectively way up evidence and not simply swallow information whole. This is important in the field of psychology as psychologists need to think like a judge and assess evidence to come to a conclusion about causality in human behaviour. Moreover everyone is a lay psychologist making theories about human behaviour, however employing scientific methods and critical thinking allows psychologists to draw confident causality and sets pseudo psychology apart from psychological science.