# Factor Analysis Rotation

**Method.** Allows you to select the method of factor rotation. Available methods
are varimax, direct oblimin, quartimax, equamax, or promax.

- Varimax Method. An orthogonal rotation method that minimizes the number of variables that have high loadings on each factor. This method simplifies the interpretation of the factors.
- Direct Oblimin Method. A method for oblique (nonorthogonal) rotation. When delta equals 0 (the default), solutions are most oblique. As delta becomes more negative, the factors become less oblique. To override the default delta of 0, enter a number less than or equal to 0.8.
- Quartimax Method. A rotation method that minimizes the number of factors needed to explain each variable. This method simplifies the interpretation of the observed variables.
- Equamax Method. A rotation method that is a combination of the varimax method, which simplifies the factors, and the quartimax method, which simplifies the variables. The number of variables that load highly on a factor and the number of factors needed to explain a variable are minimized.
- Promax Rotation. An oblique rotation, which allows factors to be correlated. This rotation can be calculated more quickly than a direct oblimin rotation, so it is useful for large datasets.

**Display.** Allows you to include output on the rotated solution, as well as
loading plots for the first two or three factors.

- Rotated Solution. A rotation method must be selected to obtain a rotated solution. For orthogonal rotations, the rotated pattern matrix and factor transformation matrix are displayed. For oblique rotations, the pattern, structure, and factor correlation matrices are displayed.
- Factor Loading Plot. Three-dimensional factor loading plot of the first three factors. For a two-factor solution, a two-dimensional plot is shown. The plot is not displayed if only one factor is extracted. Plots display rotated solutions if rotation is requested.

**Maximum Iterations
for Convergence.** Allows you to specify the maximum number
of steps that the algorithm can take to perform the rotation.

To Specify Rotation Options

This feature requires the Statistics Base option.

- From the menus choose:
- In the Factor Analysis dialog box, click Rotation.