what are the two goals of scale development? course hero

What is the goal of scale development?

A primary goal of scale development is to create a valid measure of an underlying construct. We discuss theoretical principles, practical issues, and pragmatic decisions to help developers maximize the construct validity of scales and subscales. First, it is essential to begin with a clear conceptualization of the target construct.

What is the goal of scale selection?

Finally, in selecting scale items, the goal is unidimensionality rather than internal consistency; this means that virtually all interitem correlations should be moderate in magnitude. Factor analysis can play a crucial role in ensuring the unidimensionality and discriminant validity of scales.

What are the approaches to scale creation?

Approaches to scale creation. There are two distinct approaches to scale creation. A construct to generate items within its domain. This approach is useful when the definition of the construct is known and substantial enough to generate an initial pool of items. By contrast, an construct.

Why is scale validation important for self-report scales?

As a result of these complexities, developing a measurement instrument can be a challenging task, and validation is especially important to the process of scale construction. This article focuses on the principles and best practices of scale creation with regard to self-report scales.

What is scale development?

Scale Development is a process of developing a reliable and valid measure of a construct in order to assess an attribute of interest. Industrial-Organizational research involves the measurement of organizational and psychological constructs, which present unique challenges because they are generally unobservable (e.g., work attitudes, perceptions, personality traits). As opposed to observable characteristics (e.g., height, precipitation, velocity) unobservable constructs cannot be measured directly and must be assessed through indirect means, such as self-report. Relatedly, these constructs are often very abstract (e.g., core self-evaluations), making it difficult to determine which items adequately represent them—and which ones do so reliably. Finally, these constructs are often complex and may be composed of several different components rather than being a single, solitary concept. As a result of these complexities, developing a measurement instrument can be a challenging task, and validation is especially important to the process of scale construction. This article focuses on the principles and best practices of scale creation with regard to self-report scales.

What is the key idea of construct?

essential, as a distinct scale must be constructed for each one. A key idea in construct definition is to outline the nomological network: i.e., how the. focal construct (and its specific dimensions) is related to other constructs. Once the construct is.

What is a construct based on?

construct should be positively related to, negatively related to, and relatively independent of. based on theory. The nomological network will be essential to the validation process, as a scale. that empirically relates to other established measures in the way predicted by theory displays.

What is instrument refinement?

Instrument refinement refers to any set of procedures designed to improve an instrument's representation of a construct. Though often neglected, it is essential to the development of reliable and valid measures.

What is the dimensionality of a construct?

of a construct can be understood as whether the construct is best conceived as being made up of a. single variable (unidimensional) or the combination of a number of distinct subcomponents.

What is the primary goal of scale development?

A primary goal of scale development is to create a valid measure of an underlying construct. We discuss theoretical principles, practical issues, and pragmatic decisions to help developers maximize the construct validity of scales and subscales.

What is scale creation?

Scale creation is a process of developing a reliable and valid measure of a construct in. order to assess an attribute of interest. Industrial-Organizational research involves the. measurement of organizational and psychological constructs, which present unique challenges.