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  2. Operational definition - Wikipedia

    en.wikipedia.org/wiki/Operational_definition

    An operational definition is designed to model or represent a concept or theoretical definition, also known as a construct. Scientists should describe the operations (procedures, actions, or processes) that define the concept with enough specificity such that other investigators can replicate their research. [4][5] Operational definitions are ...

  3. Operationalization - Wikipedia

    en.wikipedia.org/wiki/Operationalization

    An example of operationally defining "personal space". [1] In research design, especially in psychology, social sciences, life sciences and physics, operationalization or operationalisation is a process of defining the measurement of a phenomenon which is not directly measurable, though its existence is inferred from other phenomena.

  4. Operations research - Wikipedia

    en.wikipedia.org/wiki/Operations_research

    Operations research (British English: operational research) (U.S. Air Force Specialty Code: Operations Analysis), often shortened to the initialism OR, is a discipline that deals with the development and application of analytical methods to improve decision-making. [1] The term management science is occasionally used as a synonym.

  5. Operational taxonomic unit - Wikipedia

    en.wikipedia.org/wiki/Operational_taxonomic_unit

    An operational taxonomic unit (OTU) is an operational definition used to classify groups of closely related individuals.The term was originally introduced in 1963 by Robert R. Sokal and Peter H. A. Sneath in the context of numerical taxonomy, where an "operational taxonomic unit" is simply the group of organisms currently being studied. [1]

  6. Data analysis - Wikipedia

    en.wikipedia.org/wiki/Data_analysis

    Data analysis is the process of inspecting, cleansing, transforming, and modeling data with the goal of discovering useful information, informing conclusions, and supporting decision-making. [1] Data analysis has multiple facets and approaches, encompassing diverse techniques under a variety of names, and is used in different business, science ...

  7. Exchangeable random variables - Wikipedia

    en.wikipedia.org/wiki/Exchangeable_random_variables

    Exchangeable random variables. In statistics, an exchangeable sequence of random variables (also sometimes interchangeable) [1] is a sequence X1, X2, X3, ... (which may be finitely or infinitely long) whose joint probability distribution does not change when the positions in the sequence in which finitely many of them appear are altered. In ...

  8. Operational analytical processing - Wikipedia

    en.wikipedia.org/wiki/Operational_analytical...

    Operational analytical processing, or more popularly known as operational analytics, is a subset of data analytics that focuses on improving the operational nature of a business or entity. The main characteristic that distinguishes operational analytics from other types of analytics is that it is analytics on the fly, [1] which means that ...

  9. Sampling (statistics) - Wikipedia

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

    Sampling (statistics) In statistics, quality assurance, and survey methodology, sampling is the selection of a subset or a statistical sample (termed sample for short) of individuals from within a statistical population to estimate characteristics of the whole population. The subset is meant to reflect the whole population and statisticians ...