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Table 4 Item locations, item thresholds, and outfit and infit mean squares

From: Feasibility and psychometric properties of the German 12-item WHO Disability Assessment Schedule (WHODAS 2.0) in a population-based sample of patients with myocardial infarction from the MONICA/KORA myocardial infarction registry

Item

Location

Threshold 1

Threshold 2

Outfit mean squares

Infit mean squares

Standing

-0.826

-1.998

0.347

0.870

0.902

Household responsibilities+

-0.028

-1.500

1.445

0.610

0.693

Learning a new task-

0.940

-0.186

2.065

1.277

1.127

Joining in community activities+

0.078

-1.023

1.178

0.749

0.819

Being emotionally affected

-1.692

-3.953

0.570

1.000

1.007

Concentrating

1.178

-0.268

2.625

1.025

1.039

Walking

-1.206

-2.008

-0.403

1.094

1.113

Washing+

1.304

0.652

1.956

0.646

0.766

Getting dressed+

1.475

0.496

2.454

0.752

0.787

Dealing with people you do not know

1.938

0.764

3.112

1.103

1.136

Maintaining a friendship

1.700

0.818

2.582

1.131

1.149

Work+

-0.028

-1.463

1.407

0.578

0.650

  1. +Item showing slight to moderate overfit.
  2. -Item showing slight underfit.