Category label

Score

Infit Mnsq

Outfit Mnsq

Category measure

Structure calibration

Standard error

Seldom

0

1.02

1.02

−1.37

-

-

Sometimes

1

0.96

0.88

−0.54

−0.59

0.02

Frequently

2

1.01

1.02

1.74

0.59

0.01