Spearman Correlation Matrix1
R coefficients and p-values in parentheses
Variable	a21_post	a22_post	a23_post	a24_post	a25_post	a26_post	a27_post	a28_post
a21_post	1.00 (0.000)***	0.78 (0.000)***	0.75 (0.000)***	0.70 (0.000)***	0.52 (0.000)***	0.52 (0.000)***	0.52 (0.000)***	-0.04 (0.794)
a22_post	0.78 (0.000)***	1.00 (0.000)***	0.80 (0.000)***	0.62 (0.000)***	0.61 (0.000)***	0.48 (0.001)***	0.60 (0.000)***	-0.11 (0.490)
a23_post	0.75 (0.000)***	0.80 (0.000)***	1.00 (0.000)***	0.68 (0.000)***	0.56 (0.000)***	0.56 (0.000)***	0.69 (0.000)***	0.04 (0.779)
a24_post	0.70 (0.000)***	0.62 (0.000)***	0.68 (0.000)***	1.00 (0.000)***	0.57 (0.000)***	0.58 (0.000)***	0.61 (0.000)***	0.16 (0.283)
a25_post	0.52 (0.000)***	0.61 (0.000)***	0.56 (0.000)***	0.57 (0.000)***	1.00 (0.000)***	0.77 (0.000)***	0.47 (0.001)**	0.09 (0.562)
a26_post	0.52 (0.000)***	0.48 (0.001)***	0.56 (0.000)***	0.58 (0.000)***	0.77 (0.000)***	1.00 (0.000)***	0.41 (0.006)**	0.15 (0.331)
a27_post	0.52 (0.000)***	0.60 (0.000)***	0.69 (0.000)***	0.61 (0.000)***	0.47 (0.001)**	0.41 (0.006)**	1.00 (0.000)***	0.06 (0.691)
a28_post	-0.04 (0.794)	-0.11 (0.490)	0.04 (0.779)	0.16 (0.283)	0.09 (0.562)	0.15 (0.331)	0.06 (0.691)	1.00 (0.000)***
1 *p < 0.05, **p < 0.01, ***p < 0.001