. 2020 Feb 3;10:1683. doi: 10.1038/s41598-020-58409-5

Table 2.

Group scores on IQ, working memory, inhibition, and flexibility measures.

Ability	Measure	M	SD	Range (min-max)
Intellectual functioning	WISC-IIIv.ch./WAIS-IV^a
	Verbal IQ^b,e	48.36	5.94	40–67
	Performance IQ^c,e	46.28	3.79	40–59
	Total IQ^d,e	41.17	2.41	40–53
Working memory	Digit span^a
	Forward^f	1.28	1.23	0–4
	Backward^f	1.00	1.24	0–4
	Total^f	2.28	2.26	0–7
Inhibition	HF^a
	Congruent items^f	14.86	6.60	5–28
	Incongruent items^f	16.17	8.93	0–29
Flexibility	WCST perseverative responses^a
	Raw score^g	41.94	17.12	10–62
	Standard score^h	5.15	3.33	−0.21–12.23

Notes: ^an = 36.

^bWISC-III or WAIS-IV verbal IQ. ^cWISC-III performance IQ or WAIS-IV perceptual reasoning index. ^dWISC-III or WAIS-IV full scale IQ. ^eStandard IQ scores (M = 100, SD = 15). ^fRaw scores (total correct). ^gTotal perseverative responses. ^hz-scores (M = 0, SD = 1).