cause [Verb] + difficulty [Noun]

Strength Strength Dispersion
A:
208
CHISQ:
1,640.71
AWT:
736,096
TTEST:
12.95
G2:
583.51
FAWT:
73.85
MI:
3.29
LOGLOG:
25.32
JD:
0.91
MI3:
18.69
DICE:
1.27
RANGE: