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Calibration and initial validation of a general self-efficacy item bank and short form for the NIH PROMIS®.

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Title: Calibration and initial validation of a general self-efficacy item bank and short form for the NIH PROMIS®.
Authors: Salsman, John M. (AUTHOR), Schalet, Benjamin D. (AUTHOR), Merluzzi, Thomas V. (AUTHOR), Park, Crystal L. (AUTHOR), Hahn, Elizabeth A. (AUTHOR), Snyder, Mallory A. (AUTHOR), Cella, David (AUTHOR)
Source: Quality of Life Research. Sep2019, Vol. 28 Issue 9, p2513-2523. 11p. 4 Charts, 2 Graphs.
Subjects: National Institutes of Health (U.S.), Exploratory factor analysis, Confirmatory factor analysis, Self-efficacy, Calibration
Abstract: Aims: General self-efficacy is associated with adaptive coping and positive health outcomes. The Patient-Reported Outcomes Measurement Information System (PROMIS®) has developed self-efficacy item banks for managing chronic conditions, but lacks a general self-efficacy measure. We sought to refine and validate an item-response theory (IRT)-based measure of general self-efficacy for PROMIS®.Methods: Ten items were modified from the NIH Toolbox® Self-Efficacy Item Bank by creating "confidence" response options, and administered to a general population sample (n = 1000) with the Toolbox® Self-Efficacy Item Bank, Life Orientation Test-Revised (LOT-R), and Generalized Expectancy for Success Scale (GESS). We split the sample in half for exploratory factor analysis (EFA) followed by confirmatory factor analysis (CFA). IRT analyses included evaluation of differential item functioning (DIF).Results: Participants had a mean age of 47.8 years and 50.3% were male. EFA showed all items loaded onto one dominant factor and CFA yielded a good fitting model for a general self-efficacy bank with confidence response options (CFI = 0.987, TLI = 0.984, RMSEA = 0.090). Items showed no evidence of DIF by gender, age, education, or race. Internal consistency reliability was α = .94 and .88 for a new 10-item general self-efficacy bank and 4-item short form, respectively. The new bank was correlated with the LOT-R (r = .58), the GESS (r = .55), and the Toolbox® Self-Efficacy Item Bank (r = .87).Conclusions: The PROMIS® General Self-Efficacy measure demonstrated sufficient unidimensionality and displayed good internal consistency reliability, model fit, and convergent validity. Further psychometric testing of the PROMIS® General Self-Efficacy Item Bank and Short Form can evaluate its utility in people with chronic health conditions. [ABSTRACT FROM AUTHOR]
Copyright of Quality of Life Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Calibration and initial validation of a general self-efficacy item bank and short form for the NIH PROMIS<superscript>®</superscript>.
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  Data: <searchLink fieldCode="AR" term="%22Salsman%2C+John+M%2E%22">Salsman, John M.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schalet%2C+Benjamin+D%2E%22">Schalet, Benjamin D.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Merluzzi%2C+Thomas+V%2E%22">Merluzzi, Thomas V.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Park%2C+Crystal+L%2E%22">Park, Crystal L.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hahn%2C+Elizabeth+A%2E%22">Hahn, Elizabeth A.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Snyder%2C+Mallory+A%2E%22">Snyder, Mallory A.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cella%2C+David%22">Cella, David</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Quality+of+Life+Research%22">Quality of Life Research</searchLink>. Sep2019, Vol. 28 Issue 9, p2513-2523. 11p. 4 Charts, 2 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22National+Institutes+of+Health+%28U%2ES%2E%29%22">National Institutes of Health (U.S.)</searchLink><br /><searchLink fieldCode="DE" term="%22Exploratory+factor+analysis%22">Exploratory factor analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Confirmatory+factor+analysis%22">Confirmatory factor analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Self-efficacy%22">Self-efficacy</searchLink><br /><searchLink fieldCode="DE" term="%22Calibration%22">Calibration</searchLink>
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  Data: <bold>Aims: </bold>General self-efficacy is associated with adaptive coping and positive health outcomes. The Patient-Reported Outcomes Measurement Information System (PROMIS®) has developed self-efficacy item banks for managing chronic conditions, but lacks a general self-efficacy measure. We sought to refine and validate an item-response theory (IRT)-based measure of general self-efficacy for PROMIS®.<bold>Methods: </bold>Ten items were modified from the NIH Toolbox® Self-Efficacy Item Bank by creating "confidence" response options, and administered to a general population sample (n = 1000) with the Toolbox® Self-Efficacy Item Bank, Life Orientation Test-Revised (LOT-R), and Generalized Expectancy for Success Scale (GESS). We split the sample in half for exploratory factor analysis (EFA) followed by confirmatory factor analysis (CFA). IRT analyses included evaluation of differential item functioning (DIF).<bold>Results: </bold>Participants had a mean age of 47.8 years and 50.3% were male. EFA showed all items loaded onto one dominant factor and CFA yielded a good fitting model for a general self-efficacy bank with confidence response options (CFI = 0.987, TLI = 0.984, RMSEA = 0.090). Items showed no evidence of DIF by gender, age, education, or race. Internal consistency reliability was α = .94 and .88 for a new 10-item general self-efficacy bank and 4-item short form, respectively. The new bank was correlated with the LOT-R (r = .58), the GESS (r = .55), and the Toolbox® Self-Efficacy Item Bank (r = .87).<bold>Conclusions: </bold>The PROMIS® General Self-Efficacy measure demonstrated sufficient unidimensionality and displayed good internal consistency reliability, model fit, and convergent validity. Further psychometric testing of the PROMIS® General Self-Efficacy Item Bank and Short Form can evaluate its utility in people with chronic health conditions. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Quality of Life Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Sep2019
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