Answer:
At age one, Glenda's baby would cry less because she would know that crying does not lead to a reward and therefore learn to use the tactic less often.
On the other hand, Ruthie's baby will learn that crying leads to love and care and therefore that behavior will be associated to receiving comfort and attention.
Therefore Glenda's theory that picking up a crying baby will reinforce the crying and the child will become harder to care for, has shown better results.
