Table 2.

Group performance on the PI20, CFMT and CFMT-A.

		age	PI20	CFMT (%)	CFMT-A (%)
low-PI20 N = 225	mean	36.14	43.43	74.55	76.10
	s.d.	11.66	9.08	13.56	11.90
	range	21–60	23–64	40.28–95.83	48.61–98.61
high-PI20 N = 159	mean	37.73	77.04	60.46	65
	s.d.	10.85	7.49	12.38	13.47
	range	21–60	65–96	31.94–93.06	36.11–97.22