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Published on: June 8, 2015
Reliability and validity of the Papadum/Pizza test
Barbara Resnick1, Sarah Holmes1, N Jennifer Klinedinst1
1University of Maryland School of Nursing, 655 West Lombard Street, Baltimore, MD 21201, United States.
Purpose:
The purpose of this study was to test the psychometric properties of the Papadum/Pizza Test.
Design:
This was a descriptive study.
Sample:
Participants included 80 individuals living in low-income senior housing. The majority were female (70 %) and Black (70 %) older adults.
Measures:
Demographics, the Patient Health Questionnaire-2, the Papadum/Pizza test, and the Clock test were obtained.
Data Analysis:
Descriptive statistics were done. A Cohen's Kappa was calculated to evaluate inter-rater reliability. Rasch analysis using Winsteps was done to test internal consistency, Differential Item Functioning (DIF), and model testing for construct validity. Hypothesis testing was done using Pearson correlations.
Results:
There was a Cohen's kappa of .98, an alpha coefficient of .95, no DIF between groups, and all items fitting the model, and all hypotheses tested were supported.
Conclusion:
The study provided support for reliability and validity of the Pizza Test when used with older adults in senior housing.
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