Back to the lesson libraryMECHANISM · 13 MIN
M09.6 CONNECT THE MECHANISM

Change one thing and measure what follows

Version 2 of a math tutor solves 78% of problems instead of 71%. Was it the new prompt, the bigger model, or luck? Design the experiment that tells you, and put error bars on it.

LESSON OVERVIEW13 min lesson

Lesson overview

Version 2 of a math tutor solves 78% of problems instead of 71%. Was it the new prompt, the bigger model, or luck? Design the experiment that tells you, and put error bars on it.

What you’ll explore

  • Ablations, controls, paired comparisons, and uncertainty estimates help identify which changes explain a result, while confounding and selection limit causal interpretation.
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