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Title: Measuring Constructs in Family Science: How Can Item Response Theory Improve Precision and Validity?
Resulting in 1 citation.
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Gordon, Rachel A. |
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Measuring Constructs in Family Science: How Can Item Response Theory Improve Precision and Validity? Journal of Marriage and Family 77,1 (February 2015): 147-176. Also: http://onlinelibrary.wiley.com/doi/10.1111/jomf.12157/abstract Cohort(s): NLSY79 Publisher: Blackwell Publishing, Inc. => Wiley Online Keyword(s): Data Quality/Consistency; Scale Construction; Test Scores/Test theory/IRT This article provides family scientists with an understanding of contemporary measurement perspectives and the ways in which item response theory (IRT) can be used to develop measures with desired evidence of precision and validity for research uses. The article offers a nontechnical introduction to some key features of IRT, including its orientation toward locating items along an underlying dimension and toward estimating precision of measurement for persons with different levels of that same construct. It also offers a didactic example of how the approach can be used to refine conceptualization and operationalization of constructs in the family sciences, using data from the National Longitudinal Survey of Youth 1979 (n = 2,732). Three basic models are considered: (a) the Rasch and (b) two-parameter logistic models for dichotomous items and (c) the Rating Scale Model for multicategory items. Throughout, the author highlights the potential for researchers to elevate measurement to a level on par with theorizing and testing about relationships among constructs. |
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Bibliography Citation
Gordon, Rachel A. "Measuring Constructs in Family Science: How Can Item Response Theory Improve Precision and Validity?" Journal of Marriage and Family 77,1 (February 2015): 147-176.
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