Development and Content Validity of the Self-Care of Oral Anticancer Agents Index (SCOAAI)

Federica Lacarbonara; Marco Di Nitto; Valentina Biagioli; Angela Durante; Fabio Sollazzo; Francesco Torino; Mario Roselli; Rosaria Alvaro; Ercole Vellone

doi:10.1016/j.soncn.2023.151402

Development and Content Validity of the Self-Care of Oral Anticancer Agents Index (SCOAAI)

Semin Oncol Nurs. 2023 Jun;39(3):151402. doi: 10.1016/j.soncn.2023.151402. Epub 2023 Mar 16.

Authors

Federica Lacarbonara¹, Marco Di Nitto², Valentina Biagioli¹, Angela Durante³, Fabio Sollazzo¹, Francesco Torino⁴, Mario Roselli⁴, Rosaria Alvaro⁵, Ercole Vellone⁶

Affiliations

¹ Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.
² Centre for Clinical Excellence, Quality and Safety of Care (CNEC), Istituto Superiore di Sanità, Via Giano della Bella 34 - 00162 Rome Italy. Electronic address: marcodinitto93@gmail.com.
³ Professor, Pre-departmental Unit of Nursing, University of la Rioja, Logroño, Spain.
⁴ Professor, Department of Systems Medicine, Medical Oncology, Tor Vergata University of Rome, 00133, Rome, Italy.
⁵ Professor, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.
⁶ Professor, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy; Department of Nursing and Obstetrics, Wroclaw Medical University, Poland.

PMID: 36933993
DOI: 10.1016/j.soncn.2023.151402

Abstract

Objective: To develop and test the content validity of the Self-Care of Oral Anticancer Agents Index (SCOAAI).

Data sources: SCOAAI items were developed according to the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) criteria. The Middle Range Theory of Self-Care of Chronic Illnesses informed item generation. A four-phase procedure was followed; Phase 1: items were created based on a previous systematic review and a qualitative study; Phase 2: the SCOAAI comprehensibility and comprehensiveness were established through qualitative interviews with clinical experts and with patients (Phase 3); and Phase 4: the SCOAAI was then administered through an online survey to a group of clinical experts for the Content Validity Index (CVI) calculation.

Conclusion: The first version of the SCOAAI included 27 items. Five clinical experts and 10 patients tested the comprehensiveness and comprehensibility of instructions, items, and response options. Fifty-three experts (71.7% female, mean experience with patients on oral anticancer agents 5.8 years [standard deviation ± .2]; 66% nurses) participated in the online survey for content validity testing. The final version of the SCOAAI includes 32 items. Item CVI ranges between 0.79 and 1; the average Scale CVI is 0.95. Future studies will test the psychometric properties of the tool.

Implications for nursing practice: The SCOAAI showed excellent content validity, confirming its usefulness for assessing self-care behaviors for patients on oral anticancer agents. By implementing this instrument, nurses could define and implement targeted interventions for improving self-care and obtaining more positive outcomes (eg, better quality of life, reduced hospitalizations and emergency department visits).

Keywords: Cancer patients; Content validity; Instrument development; Oral anticancer agents; Self-care.

MeSH terms

Female
Humans
Male
Psychometrics
Quality of Life*
Reproducibility of Results
Self Care*
Surveys and Questionnaires