I test for nonlinearities in the impact of credits earned on
labor market outcomes by replacing the continuous measure
of credit receipt with discrete categories of credits earned.19
As shown in column 2 of Table 4, women who earn between
1 and 45 credits experience an approximately $200 decrease
in their post-college earnings, whereas the earnings impacts
for individuals who earn more than 45 credits but no credential
is not statistically distinguishable from zero. I find no evidence
of a statistically significant relationship between credits
earned and quarterly employment (column 5)