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. Author manuscript; available in PMC: 2012 Sep 1.
Published in final edited form as: Psychol Assess. 2011 Sep;23(3):578–586. doi: 10.1037/a0022485

Table 1.

Principal Axis Factor Analysis of SoCT Item Pool

33-Item Pool in Development Sample 8-Item Scale
Assessment Eigenvalues
for First and
Second Factors		 Loadings on
First Factor:
Median (Range)		 Inter-Item
Correlation:
Median (Range)		 Alpha in
Replication
Sample
Therapist (Mid-Acute Phase CT) 20.8; 2.4 .80 (.65–.87) .61 (.25–.96) .90
Therapist (End of Acute Phase CT) 23.1; 1.9 .85 (.72–.92) .69 (.36–.95) .93
Patient (Mid-Acute Phase CT) 14.3; 3.1 .65 (.52–.81) .42 (.12–.83) .86
Patient (End of Acute Phase CT) 16.7; 2.8 .73 (.60–.80) .49 (.24–.92) .89

Note. SoCT = Skills of Cognitive Therapy; CT = Cognitive Therapy.