. Author manuscript; available in PMC: 2013 Apr 1.

Published in final edited form as: J Exp Child Psychol. 2012 Jan 3;111(4):607–628. doi: 10.1016/j.jecp.2011.12.001

Table 1.

Subtypes of Compare Problems

Unknown (Subtype)	Sample Compare Problems

	Using Additive Relational Terminology
Difference	Jill has 5 marbles. Tom has 8 marbles. How many marbles does Tom have more than Jill?
Compared	Jill has 3 marbles. Tom has 5 more marbles than Jill. How many marbles does Tom have?
Referent	Jill has 8 marbles. She has 5 more marbles than Tom. How many marbles does Tom have?
	Using Subtractive Relational Terminology
Difference	Jill has 5 marbles. Tom has 8 marbles. How many marbles does Jill have less than Tom?
Compared	Tom has 8 marbles. Jill has 3 fewer marbles than Tom. How many marbles does Jill have?
Referent	Tom has 5 marbles. He has 3 less than Jill. How many marbles does Jill have?