Which of the following is not one of the personnel metrics used to determine P-Level?

The correct choice indicates that the "Total Available Strength" is not considered one of the personnel metrics used to determine P-Level. In the context of military personnel assessments, the P-Level (Personnel Level) measures the readiness and capability of units by evaluating various operational capabilities related to personnel.

The other options reflect metrics that assess the effectiveness and readiness of personnel. For instance, "Total Deployable Strength" measures the number of personnel who are capable of being deployed, which directly affects a unit's operational readiness. "Assigned MOS skills match" evaluates how well personnel's Military Occupational Specialty (MOS) skills align with their assigned roles, ensuring that skill sets are appropriately utilized within units. "Deployable Senior Grade Composite Level" assesses the rank and qualifications of personnel available for deployment, providing insight into the leadership capacity within a unit.

In contrast, "Total Available Strength" often encompasses all personnel, including those not deployable or in training, thus making it less relevant for the specific determination of P-Level, which focuses on operational readiness and deployability. This distinction underscores the reason why this metric is not included in the calculation of P-Level assessments.