TY - JOUR
T1 - The psychometric properties of the Physical Resilience Instrument for Older Adults (PRIFOR)
T2 - a Rasch analysis
AU - Fan, Chia Wei
AU - Li, Yueh Ping
AU - Chang, Chia Ming
AU - Hu, Fang Wen
AU - Lin, Chung Ying
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive licence to Springer Nature Switzerland AG.
PY - 2023/11
Y1 - 2023/11
N2 - Background: Prior psychometric evidence of the Physical Resilience Instrument for Older Adults (PRIFOR) showed good criterion-related validity, concurrent validity, known-group validity, predictive validity, and internal consistency. However, it is unclear whether older patients with different treatment diagnoses interpret the PRIFOR similarly. Aims: This study aimed to test the psychometric properties of the PRIFOR scores among different treatment diagnoses of older patients. Methods: We recruited 413 hospitalized older patients with a medical diagnosis and 207 with a surgical diagnosis in a 1343-bed tertiary-care medical center in Taiwan. Data analyses included Rasch models, Principal Components Analysis (PCA), and Pearson correlations. Results: The Rasch analyses showed that all PRIFOR items were embedded within their belonged constructs, reflecting good construct validity and unidimensionality. Person and item separation reliability support the internal consistency of the studied samples and PRIFOR items. However, six PRIFOR items were found to have meaningful differential item functioning (DIF) problems among treatment diagnoses. Conclusions: The PRIFOR is a solid measurement and can be used for monitoring the status of older adults’ physical resilience. However, because six items were found to have meaningful DIF among treatment diagnosis groups, future studies should consider designing specific items for different patient populations to assess their needs in physical resilience.
AB - Background: Prior psychometric evidence of the Physical Resilience Instrument for Older Adults (PRIFOR) showed good criterion-related validity, concurrent validity, known-group validity, predictive validity, and internal consistency. However, it is unclear whether older patients with different treatment diagnoses interpret the PRIFOR similarly. Aims: This study aimed to test the psychometric properties of the PRIFOR scores among different treatment diagnoses of older patients. Methods: We recruited 413 hospitalized older patients with a medical diagnosis and 207 with a surgical diagnosis in a 1343-bed tertiary-care medical center in Taiwan. Data analyses included Rasch models, Principal Components Analysis (PCA), and Pearson correlations. Results: The Rasch analyses showed that all PRIFOR items were embedded within their belonged constructs, reflecting good construct validity and unidimensionality. Person and item separation reliability support the internal consistency of the studied samples and PRIFOR items. However, six PRIFOR items were found to have meaningful differential item functioning (DIF) problems among treatment diagnoses. Conclusions: The PRIFOR is a solid measurement and can be used for monitoring the status of older adults’ physical resilience. However, because six items were found to have meaningful DIF among treatment diagnosis groups, future studies should consider designing specific items for different patient populations to assess their needs in physical resilience.
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U2 - 10.1007/s40520-023-02547-z
DO - 10.1007/s40520-023-02547-z
M3 - Article
C2 - 37668840
AN - SCOPUS:85169899463
SN - 1594-0667
VL - 35
SP - 2721
EP - 2728
JO - Aging Clinical and Experimental Research
JF - Aging Clinical and Experimental Research
IS - 11
ER -