Table 5.

Items analysis (II).

	IRT 1 pl		IRT 2 pl
	Dif.	z	Discrim.	z	Dif.	z
Inflation	−1.26	−12.20***	0.62	8.69***	−0.82	−9.26***
Simple interest	−0.89	−10.80***	1.75	5.94***	−0.29	−10.40***
Compound interest	2.39	13.63***	−0.08	−2.20**	−10.49	−2.21**
Risk	−1.00	−11.30***	0.07	1.91*	−5.63	−1.90*
Set	0.38	13.60***

*: p < 0.1. **: p < 0.05; ***: p < 0.01.