If we suspect that HSK depends only upon certain regressors, we can modify the BP test to regress residuals from step 1 on those regressors and carry out the appropriate F or LM test.

• 如果我们怀疑HSK仅依赖与某些特定的解释变量，我们可以做一些调整：将第一步的残差只对那些解释变量回归，并进行适当的F或LM检验。