Figure 3 | Scientific Reports

Figure 3

From: Psychometric evaluation and Rasch analyses of the German Overall Anxiety Severity and Impairment Scale (OASIS-D)

Figure 3

Rating scale tree to assess differential item functioning (DIF) within the subsample of patients with panic disorder with/without agoraphobia. Circles symbolize variables associated with DIF. Terminal nodes correspond to subgroups for which the null hypothesis of measurement invariance was rejected. Region plots are depicted below each terminal node to show the respective item threshold parameters.

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