Objective: This paper aims to provide a Spanish version of the nursing students'' perceptions of instructor caring with content validity and reliability.
Methods: A forward and backward translation procedure was conducted, and a panel of 15 experts assessed face validity. Content validity was established by calculating content validity indexes for each item and for the scale. The internal consistency was assessed in a sample of 120 students.
Results: Content validity indexes resulted in higher than 0.78 for all items except Does not reveal any of his or her personal sides and serves as a trusted resource for personal problem solving; content validity index for the scale was 0.9 and Cronbach α was 0.942.
Discussion: Results regarding reliability were similar to that of other studies in which the nursing students' perceptions of instructor caring has been used as a measuring tool. Item 12 deletion implies a considerable improvement in internal consistency.
Conclusion: The Spanish nursing students' perceptions of instructor caring is a valid and reliable tool to be used in the Spanish context. Its use will enhance the understanding of clinical mentors' impact on nursing students.
Keywords: Education; nursing; nursing care; students.