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Table 5 Response category measures and fit for 13-items Patient Activation Measure (n = 344)

From: Translation, adaptation and validation of the American short form Patient Activation Measure (PAM13) in a Danish version

Response category

Observed count

%

Observed measure

Expected measure

Infit MNSQ

Outfit MNSQ

Treshold

Strongly disagree

51

1

-0.30

-0.80

1.26

1.52

NONE

Disagree

368

10

0.18

0.17

1.03

1.03

-2.31

Agree

2185

58

1.59

1.63

0.91

0.88

-0.93

Agree strongly

1153

31

3.70

3.65

0.96

0.96

3.25

  1. Observed measure: the average of the measures that are model led to produce the responses observed in the category
  2. Expected measure: the expected value of the average measure for this sample
  3. Infit: information-weighted fit statistic
  4. Outfit: outlier-sensitive fit statistic
  5. MNSQ: mean-square statistic with expectation 1.0
  6. Treshold: the calibrated measure of the transition from the category below to this category. The bottom category has no prior transition, and so that the measure