FAQ

Does paid prep guarantee a higher base salary?
No. The Google and Stripe loops show a $25‑$35 k base lift when the prep reshapes the answer to include concrete metrics. The boost comes from interview credibility, not the invoice.

Should I choose a generic prep course or a product‑specific framework?
Choose the framework that matches the target company. The Amazon loop rewarded ALPS drills; the Meta loop rewarded MIM practice. Generic courses that ignore the rubric waste time.

How long should I expect the ROI period to be?
Typical ROI spans 45‑60 days from prep start to offer, as seen in the Google (45 days prep, 30 days interview) and Amazon (30 days prep, 30 days interview) cases. Shorter horizons are rare.amazon.com/dp/B0GWWJQ2S3).