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. Author manuscript; available in PMC: 2018 Feb 1.
Published in final edited form as: J Affect Disord. 2016 Nov 22;209:114–123. doi: 10.1016/j.jad.2016.11.032

Table 1.

Means, Standard Deviations, and Intercorrelations for Self-Report Measures

STUDY 1 1 2 3 4 5 M SD Range α
ISI Insomnia Symptoms1 -- 11.49 4.91 0–20 .82
2. INQ Thwarted Belongingness2 .22** -- 19.98 8.24 5–35 .89
3. DSI-SS Suicidal Symptoms .21** .33** -- 3.30 3.03 0–12 .86
4. BHS Hopelessness3 – .11** .29** – .27** -- 1.23 1.11 0–3 .62
5. ASI Anxiety Sensitivity4 .41** .25** .34** – .13** -- 13.18 6.20 5–25 .91

STUDY 2 1 2 3 4 5 M SD Range α

1. ISI Insomnia Symptoms1 -- 4.43 3.73 0–20 .87
2. INQ Thwarted Belongingness5 .27** -- 7.20 4.57 4–28 .91
3. DSI-SS Suicidal Symptoms .11** .21** -- .03 .25 0–7 .70
4. INQ Perceived Burdensomeness5 .22** .35** .32** -- -- 4.43 1.70 4–28 .87

STUDY 3 1 2 3 4 5 M SD Range α

1. ISI Insomnia Symptoms -- 16.08 7.87 3–31 .94
2. INQ Thwarted Belongingness .60** -- 30.16 14.53 9–62 .85
3. SBQ-R Suicide Risk .34** .49** -- 8.12 2.75 4–18 .81
4. INQ Perceived Burdensomeness .54** .73** .55** -- 14.18 10.14 7–42 .96
5. MHP-P Anxiety Symptoms .66** .63** .40** .63** -- 8.20 3.80 3–15 .90
6. MHP-P Depression Symptoms .70** .77** .48** .67** .70** 8.55 3.55 3–15 .86
**

p < .01

1

5-item version of the 7-item ISI

2

5-item version of the 9-item INQ-TB

3

3-item version of the 20-item BHS

4

5-item version of the 16-item ASI

5

8-item version of the INQ, with 4 INQ-TB and 4 INQ-PB items

Note. ISI = Insomnia Severity Index; INQ = Interpersonal Needs Questionnaire; DSI-SS = Depressive Symptoms Index—Suicidality Subscale; BHS = Beck Hopelessness Scale; ASI = Anxiety Sensitivity Index; SBQ-R = Suicidal Behavior Questionnaire—Revised; MHP-P = Multidimensional Health Profile—Psychosocial Functioning