Does giving CALCRIM No. 331 lower the prosecution's burden of proof?

Giving CALCRIM No. 331 did not lower the prosecution's burden of proof. The instruction does not " "unduly inflate the testimony" " of the witness. ( People v. Catley (2007) 148 Cal.App.4th 500, 507, 55 Cal.Rptr.3d 786 ( Catley ).) Instead, it advises the jury to consider the impairment with "all of the factors surrounding that person's testimony," and states that the impairment "does not mean he or she is any more or less credible than another witness." ( CALCRIM No. 331, italics added.) A defendant "cannot complain of an instruction the necessary effect of which is to increase the likelihood of a fair result." ( Catley, at p. 507, 55 Cal.Rptr.3d 786.)