Category label

Score

Infit Mnsq

Outfit Mnsq

Category measure

Structure calibration

Standard error

Seldom

0

1.05

1.05

−1.62

-

-

Sometimes

1

0.93

0.89

−0.42

−0.07

0.02

Usually

2

1.05

0.99

0.43

0.10

0.01

Frequently

3

0.99

1.01

1.59

−0.02

0.01