From Construct to Validated Scale: A Practical Guide to Scale Development with jamovi (Paperback) (ISBN-13: 9798175738637)

From Construct to Validated Scale is a practical, step-by-step guide for researchers, graduate students, educators, and thesis or dissertation writers who want to develop and validate measurement scales with greater clarity and confidence.

Rather than treating scale development as a series of statistical procedures, this book shows you how to move from a clearly defined construct to a defensible set of items, and then to evidence supporting the interpretation and use of the resulting scores. Using a continuous worked example and jamovi-based analyses, it explains not only what to do, but also why each decision matters.

Inside, you will learn how to define and delimit a construct, generate and refine items, conduct expert content validation and cognitive pretesting, examine item performance, perform exploratory factor analysis, confirm a measurement model through CFA, and evaluate reliability, convergent evidence, discriminant evidence, and score interpretation.

Special attention is given to the decisions researchers often find difficult: choosing appropriate thresholds, deciding when to retain or remove items, interpreting factor loadings and model-fit indices, avoiding mechanical use of cutoffs, and reporting results in a clear and publication-ready manner.

Written in an accessible and conversational style, this book is designed to help you move beyond simply creating a questionnaire toward developing a measurement instrument that is theoretically grounded, empirically supported, and responsibly interpreted.

Ideal for:

• Graduate and postgraduate researchers
• Thesis and dissertation writers
• Faculty members and research advisers
• Educational and social science researchers
• Researchers using jamovi for EFA, CFA, reliability, and validity analysis