Sibling relationships are special in that they a. vary across ...

[nmorano1]

Sibling relationships are special in that they
 
  a. vary across families.
 b. typically last a lifetime.
 c. are based on competition.
  d. are emotionally based.

Question 2

Describe the concept of personal control beliefs, both primary and secondary.
 
  What will be an ideal response?

[aprice35067]

Answer to Question 1

b

Answer to Question 2

Personal control belief refers to the degree to which you believe your performance depends on something you do. An individual with a high sense of personal control believes that his performance is under his control. Primary control involves behaviors affecting one's external world (e.g., working a second job to increase earnings). Due to its relationship to biological factors, the development of primary control is very low in childhood, high in middle age, and very low in later life. Secondary control involves behaviors or cognitions affecting the person's internal world (e.g., believing that you can succeed when facing a challenge).

[nmorano1]

Excellent

[milbourne11]

Great answer, keep it coming