Meaning of T-Scores
T-score distributions rescale raw scores into standardized scores with a mean of 50 and a standard deviation (SD) of 10. Thus, a person who has a T-score of 60 is one SD above the average of the referenced populations,
either the US general population or clinical populations.
Important: A higher Neuro-QoL T-score represents more of the concept being measured. For positively-worded concepts like Ability to Participate in Social Roles and Activities, a T-score of 60 is one SD better than average.
By comparison, for symptoms and other negatively-worded concepts like Fatigue and Depression, a T-score of 60 is one SD worse than the averaged reference population.
For adults, a clinical reference population was used for Stigma, Fatigue, Emotional and Behavioral Dyscontrol, and Sleep Disturbance measures. All other adult measures used a general population reference sample. For
children, a clinical reference population was used for stigma and pain measures. All other pediatric measures used a general reference population. Please note that, different from version 1, pediatric Fatigue and Cognitive Function were re-calibrated using a general population.
Table 1: Direction of Neuro-QoL Scores
|High scores indicate worse|
|Anxiety, Depression, Anger, |
Fatigue, Emotional and Behavioral
Dyscontrol, Sleep Disturbance,
|High scores indicate better|
|Upper Extremity Function – Fine Motor, ADL, Lower Extremity Function – Mobility, Cognitive Function, Positive Affect and Well-Being, Ability to Participate in Social Roles and Activities, Satisfaction with Social Roles and Activities, Social Relations – Interaction with Peers, Social Relations – Interaction with Adults, Communication|