Improving the Individual Work Performance Questionnaire ...

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and contextual performance scales (i.e., difficult items), and items that should be located at the lower range of the counterproductive work behavior scale (i.e., easy items). Three items were formulated by the authors for task performance, seven for ... 15% at the extreme values; De Vet et al., 2011). Inter-item correlations, Kaiser-

  Performance, Extreme