Sibling arguments tend to center on

Sibling arguments tend to center on
 
  a. which one is the favored child.
  b. personal possessions and scripts to be followed in pretend play.
  c. personal possessions.
  d. scripts to be followed in pretend play.

Question 2

Inhelder and Piaget gave their research subjects the pendulum problem to assess
 
  a. their level of social cooperation while solving it.
  b. how self-esteem predicts their persistence at the task.
  c. their ability to apply inductive scientific reasoning.
  d. how success/failure at a previous task affected their interest in solving.

Question 3

Judy Dunn (1993) reports that the number of sibling skirmishes can reach _____ per hour.
 
  a. 6
  b. 26
  c. 56
  d. 96