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  2. Common source bias - Wikipedia

    en.wikipedia.org/wiki/Common_source_bias

    Common method bias occurs when the same method or instrument is used to collect data from multiple sources, which can lead to an over-representation of certain factors. Common source bias occurs when the information or data collected is influenced by a single source, such as a single individual, group, or organisation. One of the major causes ...

  3. Reporting bias - Wikipedia

    en.wikipedia.org/wiki/Reporting_bias

    Reporting bias occurs when the dissemination of research findings is influenced by the nature and direction of the results, for instance in systematic reviews. [ 5 ] [ 6 ] Positive results is a commonly used term to describe a study finding that one intervention is better than another.

  4. Preferred Reporting Items for Systematic Reviews and Meta ...

    en.wikipedia.org/wiki/Preferred_reporting_items...

    The PRISMA flow diagram, depicting the flow of information through the different phases of a systematic review. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) is an evidence-based minimum set of items aimed at helping scientific authors to report a wide array of systematic reviews and meta-analyses, primarily used to assess the benefits and harms of a health care ...

  5. Category:Experimental bias - Wikipedia

    en.wikipedia.org/wiki/Category:Experimental_bias

    Bias that is introduced at some stage during experimentation or reporting of research. It is often introduced by, or alleviated by, the experimental design . Pages in category "Experimental bias"

  6. Bias (statistics) - Wikipedia

    en.wikipedia.org/wiki/Bias_(statistics)

    Detection bias occurs when a phenomenon is more likely to be observed for a particular set of study subjects. For instance, the syndemic involving obesity and diabetes may mean doctors are more likely to look for diabetes in obese patients than in thinner patients, leading to an inflation in diabetes among obese patients because of skewed detection efforts.

  7. Response bias - Wikipedia

    en.wikipedia.org/wiki/Response_bias

    This is one example of a type of survey that can be highly vulnerable to the effects of response bias. Response bias is a general term for a wide range of tendencies for participants to respond inaccurately or falsely to questions. These biases are prevalent in research involving participant self-report, such as structured interviews or surveys ...

  8. Observer bias - Wikipedia

    en.wikipedia.org/wiki/Observer_bias

    The most common observation method is naturalistic observation, where subjects are observed in their natural environments with the goal to assess the behaviour in an intervention free and natural setting. Observer bias is especially probable when the investigator or researcher has vested interests in the outcome of the research or has strong ...

  9. Funnel plot - Wikipedia

    en.wikipedia.org/wiki/Funnel_plot

    In the absence of publication bias, it assumes that studies with high precision will be plotted near the average, and studies with low precision will be spread evenly on both sides of the average, creating a roughly funnel-shaped distribution. Deviation from this shape can indicate publication bias.