Validity and reliability of quantitative data were ensured. Questionnaires were scrutinised by a mentoring expert and a statistician to ensure face, construct and content validity. Questionnaires were piloted on 10 CSNs and 10 nurse managers who did not form part of the whole study population. Internal consistency of questionnaires met acceptable standard with Cronbach’s alpha ranging between 0.74 and 0.83.
Lincoln and Guba’s principles of trustworthiness, namely confirmability, credibility and dependability, were applied to enhance the rigour of qualitative data (Krefting 1991 (link):220). To that effect, peer checking was done by asking nurse managers to review the collected data. Methodological triangulation was conducted with the application of both quantitative and qualitative approaches. Prolonged engagement was manifested by deliberations that lasted for 70 min to 115 min. An audit trail consisting of all field notes was kept in order to corroborate the researcher’s observation and participants’ narratives.
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