While in Stage 1 labor, dilation refers to the gradual opening of the

Which of the following hypotheses did psychoanalytic theory and behaviorism agree upon before Harlow's research?

Infants are genetically programmed to bond with their mothers. Infants' attachments to their mothers result from the fact that their mothers feed them. Infants need to learn to love their mothers over the first several years of life because their mothers are kind toward them. Infants have no true love for their mothers, as infants are not cognitively advanced enough to understand love.

In Bandura's Bobo doll experiments

a. children who saw an adult hitting the Bobo doll were more aggressive when they had a chance to play with the Bobo doll than children who watched non-aggressive adult models b. this modeling effect was not found if the children watched the adults being aggressive in a film c. Bandura's study demonstrated observational learning d. some of the above e. all of the above