Anne Thackeray1, Robin L Marcus2, Lan Yu3, Polly McCracken3, Beth Cardell2, Janel Hanmer3. 1. Department of Physical Therapy, University of Utah, Salt Lake City, UT. Electronic address: a.thackeray@utah.edu. 2. Department of Physical Therapy, University of Utah, Salt Lake City, UT. 3. University of Pittsburgh, Pittsburgh, PA.
Abstract
OBJECTIVE: To link the Activity Measure for Post-Acute Care (AM-PAC) Applied Cognition to the Patient-Reported Outcomes Measurement Information System (PROMIS) Cognitive Function, allowing for a common metric across scales. DESIGN: Cross-sectional survey study. SETTING: Outpatient rehabilitation clinics. PARTICIPANTS: Consecutive sample of 500 participants (N=500) aged ≥18 years presenting for outpatient therapy (physical, occupation, speech). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: AM-PAC Medicare and Generic Cognition short forms and PROMIS Cognitive Function items representing the PROMIS Cognitive Function item bank. RESULTS: The calibration of 25 AM-PAC cognition items with 11 fixed PROMIS cognitive function item parameters using item-response theory indicated that items were measuring the same underlying construct (cognition). Both scales measured a wide range of functioning. The AM-PAC Generic Cognitive assessment showed more reliability with lower levels of cognition, whereas the PROMIS Cognitive Function full-item bank was more reliable across a larger distribution of scores. Data were appropriate for a fixed-anchor item response theory-based crosswalk and AM-PAC Cognition raw scores were mapped onto the PROMIS metric. CONCLUSIONS: The crosswalk developed in this study allows for converting scores from the AM-PAC Applied Cognition to the PROMIS Cognitive Function scale.
OBJECTIVE: To link the Activity Measure for Post-Acute Care (AM-PAC) Applied Cognition to the Patient-Reported Outcomes Measurement Information System (PROMIS) Cognitive Function, allowing for a common metric across scales. DESIGN: Cross-sectional survey study. SETTING: Outpatient rehabilitation clinics. PARTICIPANTS: Consecutive sample of 500 participants (N=500) aged ≥18 years presenting for outpatient therapy (physical, occupation, speech). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: AM-PAC Medicare and Generic Cognition short forms and PROMIS Cognitive Function items representing the PROMIS Cognitive Function item bank. RESULTS: The calibration of 25 AM-PAC cognition items with 11 fixed PROMIS cognitive function item parameters using item-response theory indicated that items were measuring the same underlying construct (cognition). Both scales measured a wide range of functioning. The AM-PAC Generic Cognitive assessment showed more reliability with lower levels of cognition, whereas the PROMIS Cognitive Function full-item bank was more reliable across a larger distribution of scores. Data were appropriate for a fixed-anchor item response theory-based crosswalk and AM-PAC Cognition raw scores were mapped onto the PROMIS metric. CONCLUSIONS: The crosswalk developed in this study allows for converting scores from the AM-PAC Applied Cognition to the PROMIS Cognitive Function scale.
Authors: Stephen M Haley; Hilary Siebens; Wendy J Coster; Wei Tao; Randie M Black-Schaffer; Barbara Gandek; Samuel J Sinclair; Pengsheng Ni Journal: Arch Phys Med Rehabil Date: 2006-08 Impact factor: 3.966
Authors: Richard C Gershon; Molly V Wagster; Hugh C Hendrie; Nathan A Fox; Karon F Cook; Cindy J Nowinski Journal: Neurology Date: 2013-03-12 Impact factor: 9.910
Authors: Christine M McDonough; Pengsheng Ni; Wendy J Coster; Stephen M Haley; Alan M Jette Journal: Am J Phys Med Rehabil Date: 2016-01 Impact factor: 2.159
Authors: David R Roalf; Tyler M Moore; Dawn Mechanic-Hamilton; David A Wolk; Steven E Arnold; Daniel A Weintraub; Paul J Moberg Journal: Alzheimers Dement Date: 2017-02-24 Impact factor: 21.566
Authors: Stephen M Haley; Patricia L Andres; Wendy J Coster; Mark Kosinski; Pengsheng Ni; Alan M Jette Journal: Arch Phys Med Rehabil Date: 2004-04 Impact factor: 3.966
Authors: David Cella; Susan Yount; Nan Rothrock; Richard Gershon; Karon Cook; Bryce Reeve; Deborah Ader; James F Fries; Bonnie Bruce; Mattias Rose Journal: Med Care Date: 2007-05 Impact factor: 2.983