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Developing and Validating Rapid Assessment Instruments$
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Neil Abell, David W. Springer, and Akihito Kamata

Print publication date: 2009

Print ISBN-13: 9780195333367

Published to Oxford Scholarship Online: September 2009

DOI: 10.1093/acprof:oso/9780195333367.001.0001

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Establishing Evidence of Scale Score Validity

Establishing Evidence of Scale Score Validity

(p.98) 5 Establishing Evidence of Scale Score Validity
Developing and Validating Rapid Assessment Instruments

Neil Abell

David W. Springer

Akihito Kamata

Oxford University Press

This chapter deconstructs the multiple forms of evidence combined to establish the construct validity of a measure. Some forms (i.e., face and content validity) are shown to be fundamentally intuitive or conceptual, though minimal quantification may apply. Recruitment of expert panelists is discussed, and illustrations are provided for summarizing and interpreting both qualitative and quantitative responses. Convergent and discriminant construct validity are traced to their early roots in psychometric theory, and presented as opposite sides of a common coin approximating the accuracy of new scale and test scores. Criterion-related validity is overviewed in both its concurrent and predictive forms, with consideration for the illusive nature of “gold standards” traditionally incorporated in such techniques. An overview of receiver operating characteristics (ROC) analysis as a tool for gauging scale sensitivity and specificity is provided.

Keywords:   face, content, convergent, discriminant, construct, predictive, concurrent, criterion validity evidence, receiver operating characteristics, ROC, sensitivity

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