misc test 2 prep

Question 1

Explain, in your own words, the purpose of LDA.

Answer 1

LDA attempts to separate groups as well as possible with linear equations

Question 2

what is factor rotation?

Answer 2

Factor rotation is a technique in Factor Analysis that makes the factors easier to interpret by adjusting their angles without changing how much variance they explain.

In Factor Analysis, our goal is to find hidden patterns (factors) that explain relationships between variables.

Initially, these factors may be hard to interpret because they’re mixed up.

Rotation adjusts their angles to make the relationships clearer and more meaningful.

Question 3

what does factor optimization try to optimize?

Answer 3

interpretability. Tries to make factors as simple and meaningful as possible.

Question 4

what should be the correlation of the variables if you want to use factor rotation?

Answer 4

the variables should be at least somewhat correlated