Jos understands that if A is heavier than B, and B is heavier ...

[captainjonesify]

Jos understands that if A is heavier than B, and B is heavier than C, then A is also heavier than C. This demonstrates:
 
  a. seriation. c. concrete operations.
  b. transitivity. d. all of these.

Question 2

In a research study by Jeng (2000), the median age at which VLBW infants began to walk was:
 
  a. the same as full-term infants. c. two months later than full-term infants.
  b. two months earlier than full-term infants. d. four months later than full-term infants.

[bpool94]

Answer to Question 1

D

Answer to Question 2

D

[captainjonesify]

TYSM

[xiaomengxian]

Gracias!