Figure 1.

The Screeplot is a graph plotting each eigenvalue against the factor. The initial eigenvalues of factor 1, 2, 3 and 4 are 8.381, 2.447, 1.469 and 1.321. After oblique rotation the values are in the 4- factor solution 6.202, 4.040, 5.350 and 3.044 and in the 3- factor solution 6.035, 4.252 and 6.080.

Kurre et al. BMC Ear, Nose and Throat Disorders 2010 10:3   doi:10.1186/1472-6815-10-3
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