When an assumption or belief keeps us from considering the evidence fairly, or c

•   In this book, Judith Rich Harris argued that genes and peers are more important influences on a child’s personality and behavior than how the parents raise the child.
•   This challenged the widespread bias that parents are the most important influence in shaping a child’s personality.
•   As a result, the book provoked a storm of disbelief and outrage.
•   Many criticized the book without even reading it.
•   Many also attacked the credentials of the author.
•   Strong biases often create intellectual blinders, as in this case.