Measuring mental ill-health in the veterinary industry: A systematic review.

Many instruments have been developed to examine and quantify symptoms of psychopathology. The main objective of this systematic review was to examine the instrument choice employed to measure mental ill-health in professionals working in the veterinary industry and reporting of psychometric testing of these instruments by researchers. 78 papers were reviewed. A total of 73 different instruments used to measure 19 symptoms of mental ill-health were identified. Quality assessment of included papers indicated 9 were low, 63 were moderate, and 6 were high quality. Reliability testing was conducted and reported in 36 papers and validity testing was reported in 23 papers. There is considerable heterogeneity in instrument choice measuring symptoms of mental ill-health in this population and inconsistency in conducting and reporting psychometric testing of instruments across studies. Adopting commonly employed instruments that yield high quality data in psychometric testing of instruments would be beneficial at advancing understanding in this field.