Fig. 2From: Validity assessment of the PROMIS fatigue domain among people living with HIVHistogram of observed fatigue levels (open bars) superimposed on standard error of measurement curves for the 24 fatigue items administered to participants (lower light gray curve) and for the 7-item PROMIS® Fatigue Short Form (upper darker gray curve). A horizontal line is at a SEM of 3, which is the common default stopping rule for computerized adaptive testingBack to article page