Study design
The indicator of CPCJC for oncology nurses enables nurses to identify patient and family challenges in cancer wards. In addition, it serves as an indicator for addressing patient and family issues, as well as for CNSC and nurses working in the oncology area to reflect on their practices. This index contains 39 items in 13 categories, which correspond to the elements of Tanner’s Model of Clinical Judgment. In addition, 11 of the 13 categories include items related to collaboration with oncology team members other than their own professionals. This study used a two-round, modified Delphi method to identify the consensus and develop the structure of the indicator of CPCJC for oncology nurses. The Ethics Review Committee at the author’s university reviewed the research and approved it in September 2020 (approval number: R2–20).
Participants
The inclusion criteria were as follows: (i) nurses who are CNSC with >3 years of experience as nurses in the oncology area and (ii) graduate students who were recommended by the professors at the CNSC course in the Graduate School of Nursing and had worked as nurses for >3 years in the oncology area. The exclusion criteria were as follows: (i) nurses retired or on a leave and (ii) graduate students on a leave of absence.
Recruitment
CNSC
About 400 CNSC nurses, which is 42% of all CNSC nurses in Japan in 2019, who indicated their intention to participate in this study through the mailing list were invited to participate, and they provided consent to participate by replying to the consent form.
Graduate students
The researcher and co-researcher mailed the request form to the faculty members of the Graduate School of Nursing, requesting them to identify students who fulfilled the inclusion criteria. The researcher explained the study objectives to the graduate students recommended by the faculty and informed them that the consent to participate was obtained by replying to the consent form.
Study overview
This study was conducted in four phases as follows:
- Phase 1: In 2013, case studies were conducted with nine participants and content analysis was performed from the perspective of clinical judgment and interprofessional collaboration using three case studies. In addition, a prototype of this indicator was created.
- Phase 2: In 2019, focus group interviews were conducted with 13 participants.
- Phase 3: In 2020, the first survey was conducted using the modified Delphi method (Round 1).
- Phase 4: In 2021, the second survey was conducted using the modified Delphi method (Round 2).
Questionnaire method
The questionnaire survey was conducted using the modified Delphi method.
Round 1
First, participants were asked demographic questions, including age and years of clinical experience. Second, participants were asked to rate the consensus level of the validity, importance, and feasibility of 39 items in the indicator of CPCJC for oncology nurses. Each consensus level was rated on a four-point Likert scale (1 = at all disagree, 4 = at all agree). Participants’ opinion toward all 39 items in the indicator of CPCJC for oncology nurses was then sought as free description.
Round 2
Based on participants’ responses in Round 1, a revised list of the indicator of CPCJC for oncology nurses was created for consideration in Round 2. All participants were asked to rate the consensus level of the validity, importance, and feasibility of 39 items in the indicator of CPCJC for oncology nurses. Each consensus level was rated on a four-point Likert scale (1 = at all disagree, 4 = at all agree). Participants’ opinion toward all 39 items in the indicator of CPCJC for oncology nurses was then sought as free description.
Data analysis
Round 1
Demographic and Delphi survey data were analyzed descriptively using Microsoft Excel. The data calculated the percentage of “3” or “4” level for each item. The Item-level Content Validity Index (I-CVI), which indicates the appropriateness of each question item, was then calculated. Moreover, the average value of I-CVI, including all items, was calculated for the entire scale, and the Scale’s Content Validity Index (S-CVI/Ave), which shows how appropriate all items are in terms of content, was calculated. The consent rate was calculated using the same formulas as those used in a previous study [20] for validity, importance, and feasibility. There is no established consensus rate in the Delphi survey, so it was set according to the research purpose [21]. Being an exploratory survey, the consensus rate was set at an I-CVI of ³0.78 [22]. The content analysis was performed to analyze 39 items of free description.
Round 2
Both I-CVI and S-CVI were calculated for validity, importance, and feasibility in the same manner as in Round 1. The content analysis was performed to analyze 39 items of free description. The modified Delphi surveys were developed as a tool for short-term forecasting. The technique involves a panel of experts who are asked to complete several rounds of questionnaires focusing on their judgments about a topic of interest.