Perceptions of free will in obsessive-compulsive disorder: a quantitative analysis

BMC Psychiatry

Table 1 Principal axis factor analysis on 11 SAPF items with item loadings per factor

	Factor 1 “Alternative possibilities”	Factor 2 “Intentionality”	Factor 3 “Ownership”
	Expl. variance: 27.9% Cronbach’s α: 0.809	Expl. variance: 18.5% Cronbach’s α: 0.590	Expl. variance: 10.3% Cronbach’s α: 0.692
4. To what extent can you suppress the obsessions/compulsions?	0.998	−0.191	0.166
5. Can you exert control over the obsessions/compulsions?	0.735	0.032	0.001
10. To what extent can the obsessions/compulsions be influenced in some way or another?	0.616	0.077	−0.081
11. To what extent are the obsessions/compulsions avoidable?	0.448	0.094	−0.208
1. To what extent do the obsessions/compulsions take you by surprise?^a	0.224	0.135	− 0.122
7. Can you state to what extent the obsessions/compulsions are voluntary?	0.217	0.702	0.011
6. To what extent are the obsessions/compulsions unwanted?^a	0.163	0.609	− 0.007
8. To what extent do the obsessions/compulsions have a goal/purpose?	−0.179	0.440	0.073
9. To what extent have you decided to perform the obsessions/compulsions?	−0.054	0.436	0.040
3. To what extent are the obsessions/compulsions your own?	0.060	0.040	0.785
2. To what extent are the obsessions/compulsions a part of you?	−0.024	0.101	0.630

^a recoded
bold: given the sample size, factor loadings of 0.32 and larger were considered to be significant [20]

ISSN: 1471-244X