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. Author manuscript; available in PMC: 2018 Aug 1.
Published in final edited form as: Psychopharmacology (Berl). 2017 May 16;234(16):2421–2429. doi: 10.1007/s00213-017-4633-6

Table 2.

Factor loadings

Indices Factor 1
Persistence
Factor 2
Amplitude
Intensity .041 .948
Omax .778 .356
Pmax .928 −.373
Breakpoint .964 −.026
Elasticity (1/α) .835 .310

Eigenvalue 3.29 1.14

% Variance 65.82% 22.72%

Note: Loadings of .400 and greater are printed in bold face.