. Author manuscript; available in PMC: 2018 Jun 1.

Published in final edited form as: Dev Cogn Neurosci. 2017 Feb 1;25:58–68. doi: 10.1016/j.dcn.2017.01.011

Table 3. Cross-twin, split-half correlations for in-scanner movement.

	Twin 1 1^st Half	Twin 1 2^nd Half	Twin 2 1^st Half	Twin 2 2^nd Half
Twin 1 1^st Half	1	r = .71 p < .001	r = .47 p < .05	r = .53 p < .05
Twin 1 2^nd Half	r = .84 p < .001	1	r = .27 p =.24	r = .32 p = .16
Twin 2 1^st Half	r = .87 p < .001	r = .69 p < .05	1	r = .79 p < .001
Twin 2 2^nd Half	r = .64 p = .023	r = .71 p < .01	r = .73 p < .01	1

Note. Zero-order Pearson correlation coefficients. MZ correlations are provided below the diagonal; DZ correlations are provided above the diagonal.