Table 2.

Goodness-of-Fit Statistics, Item Measures (IM), and Standard Error (SE) for P-Drive Items.

Items	Infit		Outfit		IM	SE
	MnSq	ZStd	MnSq	ZStd
Maneuvers
1. Steering	1.38	2.40	1.96 a	3.30 a	0.23	0.15
2. Changing gear	1.09	0.40	0.94	0.00	−0.17	0.40
3. Using pedals	1.34	2.00	2.05 a	2.40 a	−0.95	0.17
4. Controlling speed, too slow	1.18	1.20	1.02	0.20	0.08	0.14
5. Controlling speed, too fast	1.04	0.30	1.02	0.20	−0.27	0.16
6. Using indicators	1.52	3.40	1.51	3.10	−0.18	0.16
7. Reversing	1.04	0.30	1.17	0.50	−0.49	0.17
Orientates
8. Following instructions	0.98	−0.10	1.05	0.30	−0.05	0.15
9. Finding the way	1.13	0.80	0.97	0.00	−0.55	0.16
10. Positioning on-road	1.12	0.90	1.17	0.90	0.83	0.13
11. Keeping distance	1.05	0.40	0.92	−0.30	−0.06	0.14
12. Planning	0.64	−3.00	0.57	−2.80	0.52	0.13
Follows regulations
13. Giving way	0.89	−0.70	1.02	0.20	0.23	0.13
14. Obeying stop signs/traffic lights	1.17	1.00	1.10	0.40	−0.49	0.15
15. Following speed regulations	1.16	1.20	1.19	1.00	0.30	0.17
Attending and acting
16. Attending/acting straight ahead	0.79	−1.50	0.62	−1.80	−0.05	0.14
17. Attending/acting to the left	0.90	−0.70	0.95	−0.20	0.35	0.14
18. Attending/acting to the right	0.87	−0.90	0.78	−1.00	0.18	0.14
19. Attending/acting to mirrors	1.12	0.90	1.30	1.80	0.79	0.13
20. Attending/acting to regulatory signs	1.02	0.20	1.01	0.10	0.22	0.14
21. Attending/acting to advisory signs	0.96	−0.20	0.80	−0.90	−0.75	0.17
22. Attends/responds to fellow road users	0.48	−4.70	0.43	−4.00	0.50	0.13
23. Reacting	0.60	−3.20	0.55	−2.30	0.54	0.13
24. Focusing	1.17	1.00	0.83	−0.40	−0.63	0.16
25. Problem solving	0.62	−3.10	0.55	−2.60	0.32	0.14

^aGoodness of fit outside the desired levels.