Scale Development: Theory and ApplicationsSAGE Publications, 2012 - 205 páginas This book presents complex concepts in a way that helps students to understand the logic underlying the creation, use, and evaluation of measurement instruments and to develop a more intuitive feel for how scales work. Robert DeVellis demystifies measurement by relating it to familiar experiences and by emphasizing a conceptual rather than a strictly mathematical understanding. Students’ attention is drawn to important concepts that are foundational for subsequent topics, with opportunities provided to test understanding through chapter summaries and exercises. |
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Términos y frases comunes
ability alternative analogous analytic anxiety appropriate assess assume assumptions attribute average inter-item correlation causal Chapter characteristics classical measurement classical test theory coefficient alpha computing alpha conceptual consider construct validity content validity continuum correlation matrix correlations among items corresponding covariance matrix criterion criterion-related validity curves depression determine DeVellis differentiate discussed eigenvalue equal estimate evaluate example factor analysis Figure goal Guttman scale hypothetical important indicators individual items instrument interest investigator IRT approaches item response theory item’s latent variable Likert scale loadings means measurement theory methods negative number of items parallel tests path diagram phenomenon principal components analysis procedures questionnaire redundancy reference relationship relevant reliability represent response format response options result rotation sample scale development scale items set of items share similar social sources specific statistical strongly theoretical Thurstone scale tion total variance true score underlying values variation words yield

