The PROMIS-29 Profile assesses following domains:
- Physical function
- Pain interference
- Anxiety
- Depression
- Fatigue
- Sleep disturbance
- Ability to participate in social roles and activities
PROMIS-29 is scored using T-scores. Higher T-scores indicate a higher level of the underlying construct.
Each domain has a set of questions, typically 4 to 6 items, and responses are rated on a 5-point Likert scale (e.g., "Never," "Rarely," "Sometimes," "Often," "Always" or "Not at all," "A little bit," "Somewhat," etc.). The responses are then scored on a T-score scale (with a mean of 50 and a standard deviation of 10 in the general population).
T-scores Interpretation:
- A T-score of 50 is the average score for the general population.
- T-scores above 50 indicate better functioning or less severe symptoms.
- T-scores below 50 indicate worse functioning or more severe symptoms.