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Domain Delineation for Measure Design

Domain delineation is a crucial step in research to clearly define a construct, differentiate it from related concepts, and lay the groundwork for measure design. It involves understanding the elements of the construct, utilizing visual representations, and clarifying the conceptual-to-operational link. This process precedes measure design and item generation, ensuring robust and valid measurements. Unit of analysis, level of abstraction, and item wording are key considerations in this phase.

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Domain Delineation for Measure Design

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  1. Domain Delineation

  2. This step involves explicating what the construct is and is not. • This step involves understanding what is being measured by elaborating on the concept, before the measure is designed and items in the measure are generated. • Careful domain delineation should precede measure design and item generation as a starting point.

  3. The goal of domain delineation is to explicate the construct to the point where a measure can be designed and item can be generated. • An effective way of clarifying a construct and distinguishing it from related constructs. • Happiness vs. Contentment • Bluntness vs. Honesty

  4. The elements of the domain of the construct need to be explicated. • Visual representation is an useful way of thinking through the domain. • Domain delineation is an important step that enables understanding the conceptual as it relates to the operational.

  5. Measure Design and Item Generation

  6. Measures can range from observational data to behavioral inventories. • Generic recommendations to enable such interpretation include avoiding ambiguous, lengthy, complex, or double-barreled items.

  7. Unit of analysis is another consideration in item development. • My workplace is friendly • My colleagues view our workplace as being friendly • Our work group views our workplace as friendly • Level of abstraction is an important consideration with item generation.

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