An AI model monitoring program reports that population stability index (PSI) values for several key input features have exceeded 0.25 over the past quarter. What action is MOST appropriate?
Select an answer to reveal the explanation.
Short Explanation and Infographic
Here's the deal — b is correct because a PSI above 0.25 is the industry-standard threshold indicating significant population shift that likely invalidates model assumptions. This requires a formal validation review to assess model fitness, not just documentation.
Full explanation below image
Full Explanation
B is correct because a PSI above 0.25 is the industry-standard threshold indicating significant population shift that likely invalidates model assumptions. This requires a formal validation review to assess model fitness, not just documentation. Simply documenting and continuing (A) ignores a material signal. Raising the threshold (C) suppresses legitimate alerts and weakens the monitoring program. Immediate retirement (D) is premature before validation establishes whether the model is still performing adequately.