Mary Whiton Calkins's Research on "Paired Associates" Revealed

Mary Whiton Calkins's research on "paired associates" revealed:

A) that numerals associated with vivid colors were remembered somewhat better than those with neutral colors.
B) that women had better recall of number-color pairs than men did.
C) that strong emotions could be triggered easily with vivid colors.
D) that responses that were followed by pleasure were strengthened while those followed by pain tended to be "stamped out."