Michael Is an Eight-Year-Old Who Understands Seriation, Conservation of Number

Multiple Choice

Michael is an eight-year-old who understands seriation, conservation of number, and amount. However, he fails to understand other types of conservation problems. This pattern of development

A) indicates that Michael is advanced for his age.
B) is common and is termed horizontal decalage.
C) suggests that Michael is delayed for his age.
D) is uncommon and suggests that Michael will show deficits at a later age.