![]() |
|
NAEP uses the jackknife repeated replication (JRR) method to obtain robust variance estimators of statistics presented in NAEP reports. While the JRR method provides a good approximation of the true sampling variability, as the number of pseudo-replicated samples increases, its computational requirements become intractable. The Taylor series expansion method offers an alternative method to variance estimation that is computationally more efficient than the JRR method.
|