Article: https://doi.org/10.1056/NEJMoa1200303 Is the research design clearly

Article: https://doi.org/10.1056/NEJMoa1200303 Is the research design clearly identified?What data (blood pressure, the number of falls, interview data, was collected, and what instruments (if any) were used (e.g. surveys, interviews, etc.). Did the researchers describe the instrument that was used to collect the data? Do you think that the way the authors collected the data was the most appropriate based on the research questions? If the instrument was a survey, does the author mention if reliability and validity testing was undertaken? Construct a valid judgment about this item and explain the basis of the judgment. For example, does this methodology make sense to you? What are the strengths and weaknesses?

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