# Glossary

# Glossary

### communality

The amount of variance in the item/variable explained by the (retained) factors. It is the sum of the squared loadings.

### eigenvalue

The amount of variance explained by a factor; the sum of squared factor loadings.

### h2

See communality.

### u2

1 - `h2`

. residual variance, a.k.a. *uniqueness*