Under which of the following conditions should the researcher examine the data for a problem?
a) When a regression returns a standardized β coefficient less than 1 or greater than 1
b) When a regression returns a standardized β coefficient less than 2 or greater than 2
c) When a regression returns a standardized β coefficient less than 5 or greater than 5
d) When a regression returns a standardized β coefficient less than 10 or greater than 10