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Table 2 Exploratory factory analysis of the DASES (n = 200)

From: Drug Abstinence Self-Efficacy Scale (DASES): psychometric properties of the Farsi version

Item
Negative Affect     
 Q6: When I am very worried .844 .045 .070 .006
 Q3: When I am feeling depressed .844 .099 .004 -.101
 Q14: When I feel like blowing up because of frustration .836 .012 .096 .041
 Q16: When I sense everything is going wrong for me .834 -.012 .011 .036
 Q18: When I am feeling angry inside .788 -.037 .012 -.070
Social Pressure
 Q15: When I see others using drugs at a bar or a party .005 .882 -.013 .045
 Q4: When I am on vacation and want to relax -.002 .876 .101 .145
 Q8: When I am offered a drug in a social situation -.007 .832 -.016 .107
 Q17: When people I used to drink with encourage me to use drugs -.027 .774 .119 .099
 Q20: When I am excited or celebrating with others .106 .628 -.019 -.067
Physical and Other Concerns about Using Drugs
 Q2: When I have a headache .004 -.029 .865 .032
 Q13: When I am experiencing some physical pain or injury -.016 .060 .829 -.029
 Q5: When I am concerned about someone .089 .157 .782 .006
 Q9: When I dream about using a drug .048 .060 .781 .034
 Q12: When I am physically tired .056 -.077 .710 -.009
Cravings and Urges
 Q10: When I want to test my willpower over using drugs .034 .091 -.027 .834
 Q7: When I have the urge to try just one drug use to see what happens .002 .010 .015 .812
 Q11: When I am feeling a physical need or craving to use drugs -.030 .094 .028 .785
 Q1: When I am in agony because of stopping or withdrawing from drug use -.003 .025 -.058 .750
 Q19: When I experience an urge or impulse to take a drug that catches me unprepared -.065 .050 .059 .597
  1. Factor loadings for four extracted principal components in the EFA sample following a varimax rotation