I've just finished a brilliant book called 'Art of Thinking Clearly ' by Rolf Dobelli and it introduces the concept of the 'Conformation Bias' where we have a tendency to interpret new information so that it becomes compatible with our existing theories, beliefs and convictions. In fact subconsciously we filter out new information that contradicts our existing views. Rolf's advice is to always look for dis-confirming evidence and never use the word 'exception'. Apparently, what a human being is best at doing is interpreting all new information so that their prior conclusions remain intact.
This gets me thinking about my experiences with supervising Postgraduates and how difficult it can be to get them to refute their original ideas/hypotheses/predictions, and the awkwardness when it comes to deciding to include/exclude obvious outliers when analyzing research data.
This makes sense, because after making the effort to write a research proposal and then looking up the literature (especially if cherry picking for a focus article/mini-review), it can be extremely difficult to see the signs that the original predictions are incorrect or correctly interpret 'dis-confirming evidence'.
I'm interested to hear opinion about this, because I have a feeling it also contributes towards our huge problem with 'publication bias' etc.