Appendix A. College Student Nonsuicidal Self-Injury Screening Items

Self-Injurious Behavior 1

Appendix A. College Student Nonsuicidal Self-Injury Screening items

Items for men and women

1. My heart races for no good reason. 2. I feel disconnected from myself. 3. I have sleep difficulties. 4. I feel helpless. 5. I have difficulty controlling my temper. 6. I sometimes feel like breaking or smashing things. 7. I have unwanted thoughts I can’t control. 8. I experience nightmares or flashbacks. 9. I get angry easily. *10. I like myself. 11. I feel sad all the time.

Items for women only

a12. I lose touch with reality. a13. I have spells of terror or panic. a14. I am afraid I may lose control and act violently. *a15. I feel comfortable around other people.

Items for men only

a16. There are many things I am afraid of. a17. I don't enjoy being around people as much as I used to. a18. I feel isolated and alone. 19. My family gets on my nerves. a20. My thoughts are racing. a21. I feel worthless. *a22. I am enthusiastic about life. a23. I feel tense. a24. I feel irritable. 25. I have thoughts of hurting others. a 26 . I feel that I have no one who understands me.

Note. Those interested in using this scale should contact the authors to obtain prior permission. *Reverse key items 10, 15, and 22. For women sum items 1-15. For men sum items 1-11, and 16-26. aThese items also discriminated NSSI for the other sex at the p < .05 level or less in the full sample. Self-Injurious Behavior 2

Appendix B

Supplement Table 1.

Comparisons of CCAPS Subscales Between NSSI and Non-NSSI Participants for Men and Women

Non-NSSI Men Significant NSSI Men (n = 1017) (n = 60)

Variable M SD M SD F η 2 Depression .91 .65 1.77 .86 93.70*** .08 Eating .71 .60 1.06 .72 19.84*** .02 Substance .81 .67 1.22 .81 20.20*** .02 Anxiety .73 .62 1.33 .77 50.90*** .05 Hostility .63 .59 1.26 .79 61.09*** .06 Social role 1.33 .69 1.96 .79 46.22*** .04 Family .82 .68 1.42 .97 41.42*** .04 Academics 1.30 .86 1.83 .91 20.98*** .02 S pirituality 2 .47 1 .39 2 .76 1 .27 2 .45 .00

Note. MANOVA results for men, F(9, 1067) = 12.01, p < .001; ***p < .001.

Non-NSSI Women Significant NSSI Women (n = 879) (n = 97)

Variable M SD M SD F η 2 Depression 1.04 .71 1.68 .90 66.36*** .06 Eating 1.12 .81 1.49 .93 17.41*** .02 Substance .77 .63 1.06 .68 17.77*** .02 Anxiety .91 .70 1.47 .90 52.92*** .05 Hostility .60 .56 1.17 .83 80.82*** .08 Social role 1.31 .65 1.77 .83 41.90*** .04 Family .94 .70 1.38 .87 32.37*** .03 Academics 1.37 .87 1.83 .91 23.89*** .02 S pirituality 2 .31 1 .43 2 .86 1 .25 13 .6 3*** .01

Note. MANOVA results for women F(9, 966) = 12.37, p < .001. ***p < .001.

Self-Injurious Behavior 3

Appendix C

Figure 1.

Receiver Operator Characteristics Curve for Women’s NSSI Screening Instrument Self-Injurious Behavior 4

Appendix C

Figure 2.

Receiver Operator Characteristics Curve for Men’s NSSI Screening Instrument Self-Injurious Behavior 5

Appendix D

Instructions for constructing non-suicide self-injury (NSSI) screening subscales from items of the Counseling Center Assessment of Psychological Symptoms (CCAPS)

For women, sum scores of the following 15 CCAPS items: 5, 10, 15, 21, 27, 31, 36, 40, 41, 44, 45, 48, 58, 60, 61 (If the CCAPS-70 version is used). 4, 8, 12, 17, 23, 27, 32, 36, 37, 39, 40, 43, 52, 54, 55 (If the CCAPS-62 version is used).

For men, sum scores of the following 22 CCAPS items: 4, 5, 10, 11, 13, 14, 21, 22, 24, 27, 32, 34, 36, 40, 41, 44, 45, 48, 50, 61, 68, 70 (If the CCAPS-70 version is used). 3, 4, 8, 9, 10, 11, 17, 18, 20, 23, 28, 30, 32, 36, 37, 39, 40, 43, 45, 55, 60, 62 (If the CCAPS-62 version is used).

Note that if the CCAPS-70 is used, item #32, #60 and #61 should be reverse scored (0=4, 1=3, 3=1, 1-4). If the CCAPS-62 is used, item #23, #55 and #54 should be reverse scored (0=4, 1=3, 3=1, 1-4).

Using this scoring procedure we obtained the following norms from a university student sample:

n M SD Median Women 976 12.23 9.36 10 Men 1077 19.50 14.42 16

Note that all these data are based on a single sample of university students. Results when used to screen samples of actual clients would almost certainly be very different.