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  • Blinding during the analysis of research data

    Author
    Polit, Denise
    Year published
    2011
    Metadata
    Show full item record
    Abstract
    Blinding in randomized controlled trials (RCTs) is a strategy that is widely endorsed as a method of reducing the biases that can result from people's awareness of study participants' treatment group status. Blinding of participants and interventionists is often impossible in nursing RCTs, but data analysts can almost always be blinded. Yet, such blinding seldom occurs, perhaps because of misperceptions about the objectivity of statistical analysis. Data analysts make many semi-subjective decisions about such issues as handling missing data, transforming variables, undertaking subgroup analysis, and selecting covariates. These decisions ideally should be made without the analyst's knowledge of how treatment groups are coded. Strategies for achieving blinding among data analysts are discussed.
    Journal Title
    International Journal of Nursing Studies
    Volume
    48
    Issue
    5
    DOI
    https://doi.org/10.1016/j.ijnurstu.2011.02.010
    Subject
    Nursing not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/43754
    Collection
    • Journal articles

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