Dr. murdoch's research indicated that teen parents tend to develop healthier relationships with female infants than with male infants. three subsequent studies by other psychologists failed to confirm her results. after reading those studies, dr. murdoch suspected that her own studies were flawed in some way. dr. murdoch is demonstrating the scientific attitude of

Dr Murdoch is demonstrating the scientific attitude of humility.
Historians of science support the idea that scientific attitude consists of three main components: humility, curiosity and scepticism. Curiosity refers to the intense need and passion to test and question in order to understand or find a solution. Skepticism refers to the attitude of doubting everything in a sensible way. Finally, humility is the attitude of believing that facts and truth matter more than your own opinion.  
This attitude helps modern scientists to test and evaluate each other's scientific conclusions.