Concepedia

Geriatric Anxiety Scale: item response theory analysis, differential item functioning, and creation of a ten-item short form (GAS-10)

Anne E. Mueller, Daniel L. Segal, Brandon E. Gavett, Meghan A. Marty, Brian P. Yochim, Andrea June, Frederick L. Coolidge

International Psychogeriatrics · 2014 · 88 citations · 27 references

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Abstract

Results from the IRT analyses indicated that the GAS and GAS-10 have strong psychometric properties among older adults. We conclude by discussing implications and future research directions.

References

27

Statistical power analysis for the behavioral sciences

Computers Environment and Urban Systems · 1990 · 65.6K citations

, , +4

A power primer.

Jacob Cohen · Psychological Bulletin · 1992 · 41.2K citations

, , +11

Statistical Power Analysis for the Behavioral Sciences

Keith E. Muller · Technometrics · 1989 · 16.5K citations

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ESTIMATION OF LATENT ABILITY USING A RESPONSE PATTERN OF GRADED SCORES1

Fumi Samejima · ETS Research Bulletin Series · 1968 · 2.6K citations · Full text

, , +25

Applying item response theory (IRT) modeling to questionnaire development, evaluation, and refinement

Maria Orlando Edelen, Bryce B. Reeve · Quality of Life Research · 2007 · 801 citations

, , +7