vast [Adjective] + improvement [Noun]

Strength Strength Dispersion
A:
32
CHISQ:
306.62
AWT:
3,009,391
TTEST:
5.16
G2:
103.01
FAWT:
18.06
MI:
3.52
LOGLOG:
17.61
JD:
0.82
MI3:
13.52
DICE:
0.58
RANGE: