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Development and psychometric testing of the Cancer Knowledge Scale for Elders
Ching-Ching Su1, Yuh-Min Chen, Bo-Jein Kuo
1Chung Jen College of Nursing, Health Science and Management, Chia Ti City, Taiwan, ROC.
Journal of Clinical Nursing
|February 26, 2009
Summary
A new Cancer Knowledge Scale for Elders was developed and validated. This easy-to-use instrument accurately measures cancer knowledge in older adults, supporting targeted education programs.
Area of Science:
- Gerontology
- Health Education
- Psychometrics
Background:
- Increasing cancer incidence in elders necessitates targeted cancer knowledge education.
- Existing instruments lack suitability for assessing cancer knowledge in older adults.
- A validated scale is crucial for developing effective elder-specific cancer education programs.
Purpose of the Study:
- To develop the Cancer Knowledge Scale for Elders (CKSE).
- To rigorously test the validity and reliability of the CKSE.
- To provide a tool for assessing cancer knowledge in the elderly population.
Main Methods:
- A non-experimental methodological design was employed.
- Psychometric properties were evaluated using item analysis, exploratory factor analysis, and criterion-related validity assessments.
- Internal consistency (KR-20) and test-retest reliability were determined.
Main Results:
- Factor analysis revealed a four-factor solution explaining 49.5% of the variance.
- Cancer knowledge showed a strong positive correlation with cancer-related health behavior (r = 0.78, p < 0.001).
- The scale demonstrated good internal consistency (KR-20 = 0.87) and stability (test-retest reliability = 0.83).
Conclusions:
- The Cancer Knowledge Scale for Elders possesses adequate content validity, construct validity, criterion-related validity, internal consistency, and stability.
- The CKSE is a user-friendly instrument for assessing cancer knowledge in older adults.
- This scale can effectively guide and evaluate cancer education initiatives for the elderly.
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