Lower vcore voltage result in instability, then we decided to try to decrease the voltage FSB termination voltage and NB vCore, after obtaining in this case an unexpected results.
While that may well be true, researchers have also recently found that interacting with strangers actually brings a boost in mood and feelings of belonging that we didn't expect.
Oh, I suppose so. Another drawback I remember it mentioned was that questionnaire data tends not to reveal anything unexpected, because it is limited to the questions fixed in advance by the researcher.