Correlation vs R Squared Explained This Is Why It Matters

This Is Why with Dr. Busti · May 13, 2026 · 13m · transcript

In this episode on This Is Why, Dr. Busti breaks down one of the most commonly misunderstood biostatistics concepts: correlation vs coefficient of determination. You’ll learn how to interpret the correlation coefficient (r), what it actually tells you about relationships between variables, and why it does NOT imply causation.

Then we connect that foundation to R² (coefficient of determination) — and This Is Why it’s critical for understanding how much variability one variable explains in another. Through clinical context and practical examples, you’ll see how these concepts apply to…