Learning [Verb] + difficulty [Noun]

Strength Strength Dispersion
A:
6
CHISQ:
26.46
AWT:
18,541,988
TTEST:
2.06
G2:
15.74
FAWT:
2.93
MI:
2.64
LOGLOG:
6.83
JD:
0.29
MI3:
7.81
DICE:
0.09
RANGE: