TY - JOUR
T1 - Development and validation of an interpretive guide for PROMIS scores
AU - Rothrock, Nan E.
AU - Amtmann, Dagmar
AU - Cook, Karon F.
N1 - Funding Information:
Generating and evaluating T-score maps was supported by a grant from the National Cancer Institute (U2C CA186878). The initial data collection that generated the de-identified archival dataset used to evaluate T-score Maps was supported in part by grant number 90RT5023-01-00, from the National Institute on Disability, Independent Living, and Rehabilitation Research (NIDILRR). NIDILRR is a Center within the Administration for Community Living (ACL), Department of Health and Human Services (HHS).
Publisher Copyright:
© 2020, The Author(s).
PY - 2020/12/1
Y1 - 2020/12/1
N2 - Background: Accurate score interpretation is required for the appropriate use of patient-reported outcome measures in clinical practice. Objective: To create and evaluate figures (T-score Maps) to facilitate the interpretation of scores on Patient-Reported Outcome Measurement Information System (PROMIS) measures. Methods: For 21 PROMIS® short forms, item-level information was used to predict the most probable responses to items for the range of possible scores on each short form. Predicted responses were then “mapped” graphically along the range of possible scores. In a previously conducted longitudinal study, 1594 adult participants with chronic conditions (e.g., multiple sclerosis) responded to four items each of a subset of these PROMIS short forms. Participants’ responses to these items were compared to those predicted by the T-score Maps. Difference scores were calculated between observed and predicted scores, and Spearman correlations were calculated. Results: We constructed T-score Maps for 21 PROMIS short forms for adults and pediatric self- and parent-proxy report. For the clinical population, participants’ actual responses were strongly correlated with their predicted responses (r = 0.762 to 0.950). The majority of predicted responses exactly matched observed responses (range 69.5% to 85.3%). Conclusion: Results support the validity of the predicted responses used to construct T-score Maps. T-score Maps are ready to be tested as interpretation aids in a variety of applications.
AB - Background: Accurate score interpretation is required for the appropriate use of patient-reported outcome measures in clinical practice. Objective: To create and evaluate figures (T-score Maps) to facilitate the interpretation of scores on Patient-Reported Outcome Measurement Information System (PROMIS) measures. Methods: For 21 PROMIS® short forms, item-level information was used to predict the most probable responses to items for the range of possible scores on each short form. Predicted responses were then “mapped” graphically along the range of possible scores. In a previously conducted longitudinal study, 1594 adult participants with chronic conditions (e.g., multiple sclerosis) responded to four items each of a subset of these PROMIS short forms. Participants’ responses to these items were compared to those predicted by the T-score Maps. Difference scores were calculated between observed and predicted scores, and Spearman correlations were calculated. Results: We constructed T-score Maps for 21 PROMIS short forms for adults and pediatric self- and parent-proxy report. For the clinical population, participants’ actual responses were strongly correlated with their predicted responses (r = 0.762 to 0.950). The majority of predicted responses exactly matched observed responses (range 69.5% to 85.3%). Conclusion: Results support the validity of the predicted responses used to construct T-score Maps. T-score Maps are ready to be tested as interpretation aids in a variety of applications.
KW - Item response theory
KW - PROMIS
KW - Patient-reported outcomes
UR - http://www.scopus.com/inward/record.url?scp=85080136101&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85080136101&partnerID=8YFLogxK
U2 - 10.1186/s41687-020-0181-7
DO - 10.1186/s41687-020-0181-7
M3 - Article
C2 - 32112189
AN - SCOPUS:85080136101
VL - 4
JO - Journal of Patient-Reported Outcomes
JF - Journal of Patient-Reported Outcomes
SN - 2509-8020
IS - 1
M1 - 16
ER -