Data from: Further development of the Assessment of Military Multitasking Performance: iterative reliability testing

The Assessment of Military Multitasking Performance (AMMP) is a battery of
functional dual-tasks and multitasks based on military activities that
target known sensorimotor, cognitive, and exertional vulnerabilities after
concussion/mild traumatic brain injury (mTBI). The AMMP was developed to
help address known limitations in post concussive return to duty
assessment and decision making. Once validated, the AMMP is intended for
use in combination with other metrics to inform duty-readiness decisions
in Active Duty Service Members following concussion. This study used an
iterative process of repeated interrater reliability testing and
feasibility feedback to drive modifications to the 9 tasks of the original
AMMP which resulted in a final version of 6 tasks with metrics that
demonstrated clinically acceptable ICCs of > 0.92 (range of
0.92–1.0) for the 3 dual tasks and > 0.87 (range 0.87–1.0) for the
metrics of the 3 multitasks. Three metrics involved in recording subject
errors across 2 tasks did not achieve ICCs above 0.85 set apriori for
multitasks (0.64) and above 0.90 set for dual-tasks (0.77 and 0.86) and
were not used for further analysis. This iterative process involved 3
phases of testing with between 13 and 26 subjects, ages 18–42 years,
tested in each phase from a combined cohort of healthy controls and
Service Members with mTBI. Study findings support continued validation of
this assessment tool to provide rehabilitation clinicians further return
to duty assessment methods robust to ceiling effects with strong face
validity to injured Warriors and their leaders.