Waterloo Handedness Questionnaire: Cross-Cultural Adaptation and Psychometric Properties of the Arabic Version

Table 2

WHQ-Ar factor structure.

Factor	Initial eigenvalue			After extraction
	Total	% of variance	Cumulative %	Total	% of variance	Cumulative %
1	21.58	59.95	59.95	21.26	59.06	59.06
2	2.20	6.12	66.07	1.83	5.08	64.14
3	0.95	2.64	68.71
4	0.85	2.35	71.06
5	0.78	2.15	73.22
6	0.70	1.95	75.16
7	0.58	1.61	76.77
8	0.57	1.59	78.37
9	0.54	1.51	79.87
10	0.53	1.47	81.34
11	0.50	1.39	82.74
12	0.49	1.35	84.08
13	0.43	1.20	85.29
14	0.42	1.17	86.46
15	0.39	1.08	87.54
16	0.38	1.06	88.60
17	0.35	0.97	89.57
18	0.34	0.93	90.50
19	0.32	0.88	91.38
20	0.31	0.85	92.23
21	0.29	0.82	93.05
22	0.28	0.77	93.82
23	0.25	0.71	94.52
24	0.23	0.64	95.16
25	0.21	0.58	95.75
26	0.20	0.56	96.30
27	0.19	0.53	96.83
28	0.18	0.49	97.32
29	0.17	0.46	97.78
30	0.15	0.40	98.19
31	0.14	0.38	98.57
32	0.13	0.36	98.93
33	0.12	0.32	99.25
34	0.11	0.31	99.56
35	0.07	0.24	99.80
36	0.07	0.20	100.00