For example, during the period of home schooling in the wake of the pandemic, students from US districts with higher average household incomes earned a higher number of badges for completing online courses relative to those from districts with lower incomes (Figure 16).
The observed dispersion of learning outcomes is primarily problematic because it could lead to lasting differences in human capital accumulation, thus causing inequality to increase in the long run. Figure 16 Students’ performance by estimated household income in the United States. Index  Source: Zearn, Inc., Opportunity Insights.