Backtest Bias Prevention

Lesson Overview

In "Backtest & Live Deployment" → "Backtesting Framework", this lesson "Backtest Bias Prevention" builds knowledge you can apply immediately.

Common biases: look-ahead, survivorship, overfitting. Use point-in-time data, realistic costs. SkyDrive engine includes bias checks by default.

Core Concepts

These points align with the video walkthrough—take notes as you watch.

• ▸Common biases: look-ahead, survivorship, overfitting.
• ▸Use point-in-time data, realistic costs.
• ▸SkyDrive engine includes bias checks by default.

Practical Application

After studying, complete the companion practice lesson to move from understanding to doing.

• ▸Follow along in Jupyter or VS Code
• ▸Log how parameter changes affect backtest results
• ▸Submit a reproducible analysis notebook

FAQ

• ▸Q: How does this lesson fit the course? A: Part of "Backtesting Framework"—follow the curriculum order.
• ▸Q: What do I need? A: Demo account and notes; quant lessons need a Python environment.
• ▸Q: How do I know I've mastered it? A: Pass the quiz and explain three key points of Backtest Bias Prevention on your own.