Development of the nonbinary gender microaggressions (NBGM) scale

While research pertaining to nonbinary microaggressions has become increasingly comprehensive in recent years, a measure specifically assessing this construct does not yet exist. The purpose of the present research was to develop and validate the Nonbinary Gender Microaggressions (NBGM) scale, which will allow future researchers to quantitatively examine nonbinary individuals' experiences of microaggressions. In Study 1 (n = 5), interviews with nonbinary individuals were conducted to explore their microaggressive experiences. The results of this study, as well as findings from previous qualitative research, were used to generate an initial pool of 92 items. In Study 2 (n = 158), a principal component analysis, which was used for item reduction, resulted in the retention of 41 items. In Studies 3 (n = 151) and 4 (n = 266), an exploratory factor analysis yielded a 23-item 5-factor solution (i.e., Negation of Identity [6 items], Inauthenticity [6 items], Deadnaming [4 items], Trans Exclusion [3 items], and Misuse of Gendered Terminology [4 items]), and a confirmatory factor analysis found that this solution demonstrates adequate model fit. Evidence of the measure's scale score reliability, convergent validity, and incremental validity also were provided. These findings indicate that, overall, the NBGM scale is a psychometrically sound measure of nonbinary individuals' experiences of microaggressions. As such, this measure can be utilized by future researchers and clinicians to better understand nonbinary individuals' microaggressive experiences.