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A secondary purpose was to assess item functioning across time.
The MSS-B was derived using classical test theory, item response theory, and differential item functioning.
Examining multiple sources of differential item functioning on the Clinician and Group CAHPS survey.
Differential item functioning between ethnic groups in the epidemiological assessment of depression.
The frequent presence of differential item functioning related to several patient characteristics confirmed the instrument's multidimensionality.
This study evaluated the validity of this instrument for midwifery practice by differential item functioning analysis.
The analyses reported the changes in means in item responses, and fitted models which estimated differential item functioning (DIF), and local dependency (LD) between items.
Differential item functioning.
This would lead to improper item functioning.
All scales contained some uniform local dependency and differential item functioning.
This is known as differential item functioning.
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