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Table 2 Internal consistency and descriptive statistics across measures

From: The relevance of the interpersonal theory of suicide for predicting past-year and lifetime suicidality in autistic adults

Measures and constructs

Average score (SD), range

Suggested clinical cut-offs in non-autistic populations

α

Previous literature (non-autistic)

Present Sample

INQ-15

Thwarted belongingness

38 (9.2), 10–63

31

.81–.87

.87

Perceived burdensomeness

17.1 (9.6), 6–42

22

.85–.90

.93

ACWRSS

Acquired capability total

29.9 (13.2), 0–56

–

Range from .74–.81

.78

Pain tolerance

6.6 (4.9), 0–16

–

 

.78

Reduced fear of death

7.5 (5.2), 9–16

–

 

.75

Mental rehearsal of suicide

15.9 (7.6), 0–24

–

 

.84

PHQ-9: Depression total

13 (7.2), 0–27

8

.86–.89

.90

GAD-7: Anxiety total

11 (5.9), 0–21

10

.92

.91

  1. Scores and internal consistency for subscales and total scale scores used in this analysis. Clinical cut-offs and comparative alpha levels in non-autistic populations are displayed for the INQ-15 [50, 51], ACWRSS [36], PHQ-9 [52, 53], and GAD-7 [54, 55]