Page 74 - JSOM Spring 2026

TABLE S3 Item-by-Item Test-Retest Reliability
Test-retest reliability; n=10
Category ICC (95% CI) SEM
3,1
Weapon Category 1
Item 1* 100.00% —
Item 2 0.994 (0.982–0.998) 0.68
Item 3 0.543 (0.030–0.830) 2.16
Item 4 –0.149 (–0.622 to 0.404) 6.12
Item 5 0.084 (–0.458 to 0.580) 492.00
Item 6 0.504 (–0.024 to 0.812) 12.50
Weapon Category 2
Item 1* 90.0% —
Item 2 0.991 (0.972–0.997) 0.68
Item 3 0.558 (0.052–0.836) 0.99
Item 4 0.609 (0.128–0.858) 1.50
Item 5 0.836 (0.558–0.945) 1.47
Item 6 0.433 (–0.114 to 0.779) 18.10
Weapon Category 3
Item 1* 80.0% —
Item 2 0.761 (0.398–0.918) 1.15
Item 3 0.349 (–0.211 to 0.737) 1.11
Item 4 0.470 (–0.068 to 0.796) 2.49
Item 5 0.957 (0.870–0.986) 8.68
Item 6 0.721 (0.319–0.903) 15.4
Weapon Category 4
Item 1* 100.0% —
Item 2 0.932 (0.799–0.978) 1.66
Item 3 0.420 (–0.130 to 0.772) 1.43
Item 4 0.453 (–0.090 to 0.788) 5.34
Item 5 0.340 (–0.221 to 0.732) 8.62
Item 6 0.504 (–0.024 to 0.812) 16.90
Weapon Category 5
Item 1* 80.0% —
Item 2 0.285 (–0.278 to 0.702) 4.08
Item 3 0.298 (0.265–0.709) 1.52
Item 4 0.169 (–0.386 to 0.635) 5.71
Item 5 0.408 (–0.144 to 0.766) 4.11
Item 6 –0.262 (–0.689 to 0.300) 36.00
Note: Three ARSOF members were excluded from the total sample of 13 because they reported exposure to blasts in between the 2 post-SFAUC
time points.
*Reported as percent agreement because Item 1 was a yes/no questions.
Weapon Category 1: small and medium arms
Weapon Category 2: large arms, often shoulder-fired, that can be carried on a person
Weapon Category 3: artillery, missile weapon systems, or large arms carried by vehicle, aircraft, or boat
Weapon Category 4: smaller explosives or grenades
Weapon Category 5: larger explosives or targeted explosives at close range
Item 1: Have you ever been exposed to *Weapon Category #* such as *Weapon Example*?
Item 2: Approximately how many years were you exposed?
Item 3: On average, how many months per year?
Item 4: On average, how many days per month?
Item 5: On average, how many rounds per day?
Item 6: Over the course of your life, approximately how often did exposures occur two days in a row (or more than two days in a row)?
ARSOF = United States Army Special Operations Forces; GBEV = generalized blast exposure value; ICC = intraclass correlation coefficient;
SEM = standard error of measurement.

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