highly significantp < 10 −8
SRI had highly significant negative linear (Pearson) correlations with standard deviations of sleep onset time (r = −0.66, p < 10 −8 ), wake time (r = −0.62, p < 10 −7 ), and mid-sleep time (r = −0.62, p < 10 −7 ).
SRI had highly significant negative linear (Pearson) correlations with standard deviations of sleep onset time (r = −0.66, p < 10 −8 ), wake time (r = −0.62, p < 10 −7 ), and mid-sleep time (r = −0.62, p < 10 −7 ).