Table 2.

Conversion of the raw scores to scaled scores for tests assessing motor and speed of information processing domains.

Scaled score	Motor		Speed of information processing
	Grooved pegboard dominant hand time (s)	Grooved pegboard non-dominant hand time (s)	WAIS-III digit symbol total	WAIS-III symbol search total	Stroop color	Stroop words	Trail making A time (s)	Color trails 1 time (s)	Scaled score
1	355–360	362–375	–	− 60 to − 17	0–7	0–15	242–255	304–345	1
2	251–354	307–361	0–4	− 16 to − 2	8–24	16–25	200–241	215–303	2
3	173–250	260–306	5–10	− 1 to 0	25–28	26–38	141–199	161–214	3
4	134–172	181–259	11–18	1 to 4	29–32	39–40	122–140	138–160	4
5	117–133	129–180	19–23	5 to 7	33–38	41–53	98–121	114–137	5
6	99–116	118–128	24–29	8 to 10	39–43	54–63	85–97	89–113	6
7	88–98	105–117	30–34	11 to 13	44–47	64–68	71–84	76–88	7
8	82–87	95–104	35–40	14 to 16	48–52	69–74	62–70	64–75	8
9	77–81	89–94	41–47	17 to 19	53–57	75–80	54–61	57–63	9
10	72–76	83–88	48–52	20 to 23	58–61	81–86	47–53	51–56	10
11	68–71	79–82	53–59	24 to 26	62–68	87–93	42–46	46–50	11
12	65–67	76–78	60–65	27 to 28	69–72	94–98	36–41	41–45	12
13	61–64	71–75	66–71	29 to 31	73–78	99–101	32–35	36–40	13
14	59–60	67–70	72–76	32 to 34	79–81	102–110	28–31	33–35	14
15	55–58	64–66	77–81	35 to 38	82–88	111–118	24–27	29–32	15
16	53–54	62–63	82–86	39	89–93	119–126	20–23	25–28	16
17	47–52	59–61	87–93	40 to 46	94–98	127–130	18–19	21–24	17
18	10–46	52–58	94–100	47 to 58	99–101	131–133	14–17	0–20	18
19	0–9	0–51	101–133	59 to 60	102–133	–	0–13	–	19

S seconds.