Psychometric Properties of the MacArthur Community Violence Screening Instrument

Abstract

This study examined the psychometric properties of the MacArthur Community Violence Screening Instrument (MCVSI) in a heterogeneous and integrated sample of adults with mental illness (n = 4,480), including its factor structure, model fit, and psychometric properties as a function of patient sex, race, and primary diagnosis. Factor structure results indicate a unidimensional construct. Item-level analyses revealed that the MCVSI’s difficulty, including the easiest and most difficult items to endorse, sometimes differed across sex, race, and primary diagnosis. However, differential item functioning was minimal across these patient characteristics, with only those without a primary diagnosis of schizophrenia indicating an increased likelihood of having “hit anyone with a fist, object or beaten anyone” compared to those with a primary diagnosis of schizophrenia. Overall, these findings support using the MCVSI as a measure of violence in studies of U.S. adults with mental illness. They also highlight the importance of using more methodologically rigorous approaches to measuring violence, including the ongoing study of the MCVSI across samples and settings.

Keywords:

• Violence
• serious mental illness
• item response theory
• differential item functioning

Acknowledgments

The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIMH or the NIH.

Disclosure statement

All authors report no conflicts of interest relevant to this article. This manuscript has not been published elsewhere and has not been submitted simultaneously for publication elsewhere.

Additional information

Funding

Funding for this study was provided by the National Institute of Mental Health (NIMH), Award Number R01MH093426 (PI: Dr. Van Dorn).