Is delta (Δ) R² the same as adjusted R² ?
I have delta R² in my notes somewhere and it didn't come up on a Google Search.
Solved – the difference between delta (Δ) R² and adjusted R²
terminology
terminology
Is delta (Δ) R² the same as adjusted R² ?
I have delta R² in my notes somewhere and it didn't come up on a Google Search.
Best Answer
Delta R2 is the change in R2 between two equations. Usually you see this come up when doing hierarchical regression with more than one step. For example, Step 1 R2 = .25 and Step 2 deltaR2 = .10. This would mean that Step 2 added .10 beyond the .25 of step 1, for a total of R2 = .35.
Edit: I should also mention that the deltaR2 will be associated with its own F value. This value will indicate whether the increase in R2 (deltaR2) is statistically significantly greater than no increase.