The nurse is conducting a research project on optimal time frames for postoperative ambulation of ...

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After identifying the problem, the next step in the research process is reviewing the literature in order to determine what is known about the problem.
Following identification of the problem and review of the literature, the researcher will design the study protocol. Selecting the population is a component of this phase of the research process.
Identifying the instrument to use for data analysis occurs during the process of designing the study protocol. This step would occur during the study design phase of the research process after problem identification and literature review have taken place.
Obtaining necessary approvals is part of conducting the study, which follows the design phase in the research process.