Development and initial evaluation of reliability and validity of the opioid-taking self-efficacy scale
Liang, Shu-Yuan, Yates, Patsy, Edwards, Helen E., & Tsay, Shiow-Luan (2008) Development and initial evaluation of reliability and validity of the opioid-taking self-efficacy scale. Oncology Nursing Forum, 35(4), E62-E69.
Purpose/Objectives: To examine the reliability and validity of the Opioid-Taking Self-Efficacy Scale-Cancer (OTSES-CA).-----
Design: Survey of two separate samples.-----
Setting: Two teaching hospitals in the Taipei area of Taiwan.-----
Sample: 30 (stage 2, pilot study) and a second cohort of 92 (stage 3) outpatients who had been prescribed opioid analgesics for cancer-related pain.-----
Methods: A preliminary set of 35 items was developed from qualitative interviews to assess the key domains of self-efficacy. The scale properties were evaluated with the first sample using face validity, test-retest reliability, and Cronbach alpha. Construct validity using exploratory factor analysis and concurrent validity were evaluated with the second sample.-----
Main Research Variables: Opioid-taking self-efficacy.-----
Findings: An initial pilot study supported face validity and test-retest reliability with stability coefficients for the subscales of the OTSES-CA, ranging from 0.68 (taking analgesics according to schedule) to 0.82 (communicating about pain and taking analgesics). An exploratory factor analysis demonstrated the multidimensionality of the OTSES-CA. Four factors were identified: communicating about pain and analgesic-taking, tailoring the medication regimen, acquiring help, and managing treatment-related concerns. Cronbach alpha coefficients reached the 0.80 criterion for each of four subscales constructed from items loading on these factors. Significant correlations among the total score of the OTSES-CA and mean adherence rates, pain relief, and worst pain support the concurrent validity of the OTSES-CA.-----
Conclusions: The data provide preliminary evidence of acceptable psychometric properties for the OTSES-CA designed to measure patients' self-efficacy with taking opioids. Further validation is recommended to confirm the four dimensions of the construct.-----
Implications for Nursing: The OTSES-CA can be used in research and clinical settings to identify various impediments to opioid adherence.
Impact and interest:
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|Item Type:||Journal Article|
|Keywords:||Pain relief, Opioids, Self-efficacy|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > NURSING (111000) > Nursing not elsewhere classified (111099)|
|Divisions:||Current > QUT Faculties and Divisions > Faculty of Health|
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Nursing
|Deposited On:||07 May 2009 14:37|
|Last Modified:||29 Feb 2012 23:47|
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