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01-05-2014

Psychometric properties of the PROMIS^® pediatric scales: precision, stability, and comparison of different scoring and administration options

Auteurs: James W. Varni, Brooke Magnus, Brian D. Stucky, Yang Liu, Hally Quinn, David Thissen, Heather E. Gross, I-Chan Huang, Darren A. DeWalt

Gepubliceerd in: Quality of Life Research | Uitgave 4/2014

Abstract

Objectives

The objectives of the present study are to investigate the precision of static (fixed-length) short forms versus computerized adaptive testing (CAT) administration, response pattern scoring versus summed score conversion, and test–retest reliability (stability) of the Patient-Reported Outcomes Measurement Information System (PROMIS^®) pediatric self-report scales measuring the latent constructs of depressive symptoms, anxiety, anger, pain interference, peer relationships, fatigue, mobility, upper extremity functioning, and asthma impact with polytomous items.

Methods

Participants (N = 331) between the ages of 8 and 17 were recruited from outpatient general pediatrics and subspecialty clinics. Of the 331 participants, 137 were diagnosed with asthma. Three scores based on item response theory (IRT) were computed for each respondent: CAT response pattern expected a posteriori estimates, short-form response pattern expected a posteriori estimates, and short-form summed score expected a posteriori estimates. Scores were also compared between participants with and without asthma. To examine test–retest reliability, 54 children were selected for retesting approximately 2 weeks after the first assessment.

Results

A short CAT (maximum 12 items with a standard error of 0.4) was found, on average, to be less precise than the static short forms. The CAT appears to have limited usefulness over and above what can be accomplished with the existing static short forms (8–10 items). Stability of the scale scores over a 2-week period was generally supported.

Conclusion

The study provides further information on the psychometric properties of the PROMIS pediatric scales and extends the previous IRT analyses to include precision estimates of dynamic versus static administration, test–retest reliability, and validity of administration across groups. Both the positive and negative aspects of using CAT versus short forms are highlighted.

vorige artikel Development of the PROMIS® pediatric global health (PGH-7) measure

volgende artikel Measuring daily fatigue using a brief scale adapted from the Patient-Reported Outcomes Measurement Information System (PROMIS®)

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Titel: Psychometric properties of the PROMIS® pediatric scales: precision, stability, and comparison of different scoring and administration options
Auteurs: James W. Varni
Brooke Magnus
Brian D. Stucky
Yang Liu
Hally Quinn
David Thissen
Heather E. Gross
I-Chan Huang
Darren A. DeWalt
Publicatiedatum: 01-05-2014
Uitgeverij: Springer International Publishing
Gepubliceerd in: Quality of Life Research / Uitgave 4/2014
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI: https://doi.org/10.1007/s11136-013-0544-0

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Abstract

Objectives

Methods

Results

Conclusion

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