Measuring exposure to bullying and harassment at work: Validity, factor structure and psychometric properties of the Negative Acts QuestionnaireRevised
Staale Einarsen , Helge Hoel & Guy Notelaers (2009) Measuring exposure to bullying and harassment at work: Validity, factor structure and psychometric properties of the Negative Acts Questionnaire-Revised, Work & Stress, 23:1, 24-44, DOI: 10.1080/02678370902815673
An anonymous questionnaire is essential for correct data collection. Police officers are concerned about their information. They did not even write by hand / pencil, they took the old typewriter :) So important their concern was.