serious [Adjective] + that [Adverb]

Strength Strength Dispersion
A:
11
CHISQ:
68.11
AWT:
8,725,408
TTEST:
-22.93
G2:
104.25
FAWT:
6.23
MI:
-2.98
LOGLOG:
-10.32
JD:
0.71
MI3:
3.93
DICE:
0.13
RANGE: