The ability to understand that things that are tall can be light ...

[cool]

The ability to understand that things that are tall can be light OR heavy is an example of:
 
  a. decentration. c. concrete operations.
  b. reversible thinking. d. all of these

Question 2

In a research study by Jeng and colleagues (2000), what percentage of full-term infants were walking by 18-months of age?
 
  a. 50 percent c. 100 percent
  b. 75 percent d. It depended upon the gender of the child.

[Ashley I]

Answer to Question 1

D

Answer to Question 2

C

[cool]

Thanks for the timely response, appreciate it

[pratush dev]

Gracias!