Abstract
This study examined dimensionality and item-level psychometric properties of an item bank measuring activities of daily living (ADL) across inpatient rehabilitation facilities and community living centers. Common person equating method was used in the retrospective veterans data set. This study examined dimensionality, model fit, local independence, and monotonicity using factor analyses and fit statistics, principal component analysis (PCA), and differential item functioning (DIF) using Rasch analysis. Following the elimination of invalid data, 371 veterans who completed both the Functional Independence Measure (FIM) and minimum data set (MDS) within 6 days were retained. The FIM-MDS item bank demonstrated good internal consistency (Cronbach’s α =.98) and met three rating scale diagnostic criteria and three of the four model fit statistics (comparative fit index/Tucker–Lewis index = 0.98, root mean square error of approximation = 0.14, and standardized root mean residual = 0.07). PCA of Rasch residuals showed the item bank explained 94.2% variance. The item bank covered the range of θ from −1.50 to 1.26 (item), −3.57 to 4.21 (person) with person strata of 6.3. The findings indicated the ADL physical function item bank constructed from FIM and MDS measured a single latent trait with overall acceptable item-level psychometric properties, suggesting that it is an appropriate source for developing efficient test forms such as short forms and computerized adaptive tests.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 25-43 |
| Number of pages | 19 |
| Journal | Evaluation and the Health Professions |
| Volume | 41 |
| Issue number | 1 |
| DOIs | |
| State | Published - Mar 1 2018 |
| Externally published | Yes |
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Keywords
- activities of daily living
- continuity of patient care
- outcome assessment (health care)
- psychometrics
- veterans
ASJC Scopus subject areas
- Health Policy
Cite this
Linking Existing Instruments to Develop an Activity of Daily Living Item Bank. / Li, Chih-ying; Romero, Sergio; Bonilha, Heather S.; Simpson, Kit N.; Simpson, Annie N.; Hong, Ickpyo; Velozo, Craig A.
In: Evaluation and the Health Professions, Vol. 41, No. 1, 01.03.2018, p. 25-43.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Linking Existing Instruments to Develop an Activity of Daily Living Item Bank
AU - Li, Chih-ying
AU - Romero, Sergio
AU - Bonilha, Heather S.
AU - Simpson, Kit N.
AU - Simpson, Annie N.
AU - Hong, Ickpyo
AU - Velozo, Craig A.
PY - 2018/3/1
Y1 - 2018/3/1
N2 - This study examined dimensionality and item-level psychometric properties of an item bank measuring activities of daily living (ADL) across inpatient rehabilitation facilities and community living centers. Common person equating method was used in the retrospective veterans data set. This study examined dimensionality, model fit, local independence, and monotonicity using factor analyses and fit statistics, principal component analysis (PCA), and differential item functioning (DIF) using Rasch analysis. Following the elimination of invalid data, 371 veterans who completed both the Functional Independence Measure (FIM) and minimum data set (MDS) within 6 days were retained. The FIM-MDS item bank demonstrated good internal consistency (Cronbach’s α =.98) and met three rating scale diagnostic criteria and three of the four model fit statistics (comparative fit index/Tucker–Lewis index = 0.98, root mean square error of approximation = 0.14, and standardized root mean residual = 0.07). PCA of Rasch residuals showed the item bank explained 94.2% variance. The item bank covered the range of θ from −1.50 to 1.26 (item), −3.57 to 4.21 (person) with person strata of 6.3. The findings indicated the ADL physical function item bank constructed from FIM and MDS measured a single latent trait with overall acceptable item-level psychometric properties, suggesting that it is an appropriate source for developing efficient test forms such as short forms and computerized adaptive tests.
AB - This study examined dimensionality and item-level psychometric properties of an item bank measuring activities of daily living (ADL) across inpatient rehabilitation facilities and community living centers. Common person equating method was used in the retrospective veterans data set. This study examined dimensionality, model fit, local independence, and monotonicity using factor analyses and fit statistics, principal component analysis (PCA), and differential item functioning (DIF) using Rasch analysis. Following the elimination of invalid data, 371 veterans who completed both the Functional Independence Measure (FIM) and minimum data set (MDS) within 6 days were retained. The FIM-MDS item bank demonstrated good internal consistency (Cronbach’s α =.98) and met three rating scale diagnostic criteria and three of the four model fit statistics (comparative fit index/Tucker–Lewis index = 0.98, root mean square error of approximation = 0.14, and standardized root mean residual = 0.07). PCA of Rasch residuals showed the item bank explained 94.2% variance. The item bank covered the range of θ from −1.50 to 1.26 (item), −3.57 to 4.21 (person) with person strata of 6.3. The findings indicated the ADL physical function item bank constructed from FIM and MDS measured a single latent trait with overall acceptable item-level psychometric properties, suggesting that it is an appropriate source for developing efficient test forms such as short forms and computerized adaptive tests.
KW - activities of daily living
KW - continuity of patient care
KW - outcome assessment (health care)
KW - psychometrics
KW - veterans
UR - http://www.scopus.com/inward/record.url?scp=85041863492&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85041863492&partnerID=8YFLogxK
U2 - 10.1177/0163278716676873
DO - 10.1177/0163278716676873
M3 - Article
C2 - 27856680
AN - SCOPUS:85041863492
VL - 41
SP - 25
EP - 43
JO - Evaluation and the Health Professions
JF - Evaluation and the Health Professions
SN - 0163-2787
IS - 1
ER -