"Disproportionality" means that something is not in the right proportion or balance. It refers to a situation where there is an unfair or unequal distribution or representation of something. Full definition
Causes of Disproportionality in School Discipline and Recommendations for Change,» The Clearing House: A Journal of Educational Strategies, Issues and Ideas 79 (2005): 46. (aft.org)
In the 1960s, at the height of the Civil Rights movement, the issue of disproportionality of minority students in special education first received national attention. (hoagiesgifted.org)
In this section, we examine the findings from this study in the context of the literature that addresses racial disproportionality in the child welfare system. (childwelfare.gov)