Final answer:
The answer to which finding does not provide evidence for the achievement gap is 'Equal opportunities for extracurricular activities', as it does not correlate with the disparities in educational achievement like the other factors do.
Step-by-step explanation:
The research finding that does NOT provide evidence to support the achievement gap between White and nonwhite youngsters is 'd. Equal opportunities for extracurricular activities'. This is because the presence of equal opportunities for extracurricular activities does not necessarily correlate with or indicate disparities in educational achievement. On the other hand, disparities in standardized test scores, differences in school funding, and teacher expectations have all been shown to contribute to the achievement gap. These factors reflect the inequalities that exist due to socioeconomic status, teacher bias, and resource allocation, which can directly affect the educational outcomes for children of different racial and ethnic backgrounds.