What is the legal test for admitting or excluding expert testimony at trial?

"A trial court's decision to admit or exclude expert testimony is reviewed for abuse of discretion." (People v. Pearson (2013) 56 Cal.4th 393, 443 (Pearson).) Under that standard, we will not disturb the trial court's decision unless it was arbitrary, capricious, or patently absurd, resulting in a manifest miscarriage of justice. (People v. Rodriguez (1999) 20 Cal.4th 1, 9-10.)