Skip to main content

Table 12 Eigenvalues of Mini-PANSS subscales (without rotation)

From: Use of NON-PARAMETRIC Item Response Theory to develop a shortened version of the Positive and Negative Syndrome Scale (PANSS)

PANSS Subscale

Component 1 Eigenvalue

Component 2 Eigenvalue

Ratio of Eigenvalues

Unidimensionality assumed

Positive Symptoms

2.920

.798

3.659

Yes

Negative Symptoms

3.628

.784

4.628

Yes

General Psychopathology

3.332

1.109

3.005

Yes

  1. Note. Ratio of Eigenvalues is computed by dividing the eigenvalues for the first component by the eigenvalues for the second component. Unidimensionality assumed, is based on the eigenvalue of Component 1 being at least three times larger than the eigenvalue for Component 2 (as presented in the column titled 'Ratio of Eigenvalues')
Back to article page

BMC Psychiatry

ISSN: 1471-244X

Contact us