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  2. Research question - Wikipedia

    en.wikipedia.org/wiki/Research_question

    Choosing a research question is the central element of both quantitative and qualitative research and in some cases it may precede construction of the conceptual framework of study; in all cases, it makes the theoretical assumptions in the framework more explicit and indicates what the researcher wants to know most and first.

  3. Conceptual framework - Wikipedia

    en.wikipedia.org/wiki/Conceptual_framework

    Like football plays, conceptual frameworks are connected to a research purpose or aim. Explanation [16] is the most common type of research purpose employed in empirical research. The formal hypothesis of a scientific investigation is the framework associated with explanation. [17]

  4. Research design - Wikipedia

    en.wikipedia.org/wiki/Research_design

    There are many ways to classify research designs. Nonetheless, the list below offers a number of useful distinctions between possible research designs. A research design is an arrangement of conditions or collection. [5] Descriptive (e.g., case-study, naturalistic observation, survey) Correlational (e.g., case-control study, observational study)

  5. Difference in differences - Wikipedia

    en.wikipedia.org/wiki/Difference_in_differences

    Difference in differences (DID [1] or DD [2]) is a statistical technique used in econometrics and quantitative research in the social sciences that attempts to mimic an experimental research design using observational study data, by studying the differential effect of a treatment on a 'treatment group' versus a 'control group' in a natural experiment. [3]

  6. PICO process - Wikipedia

    en.wikipedia.org/wiki/PICO_process

    The PICO process (or framework) is a mnemonic used in evidence-based practice (and specifically evidence-based medicine) to frame and answer a clinical or health care related question, [1] though it is also argued that PICO "can be used universally for every scientific endeavour in any discipline with all study designs". [2]

  7. Paradigm - Wikipedia

    en.wikipedia.org/wiki/Paradigm

    The Oxford English Dictionary defines a paradigm as "a pattern or model, an exemplar; a typical instance of something, an example". [11] The historian of science Thomas Kuhn gave the word its contemporary meaning when he adopted the word to refer to the set of concepts and practices that define a scientific discipline at any particular period of time.

  8. Reference model - Wikipedia

    en.wikipedia.org/wiki/Reference_model

    For example, when describing the architecture of a particular house (which is a specific environment of a certain kind), an actual exterior wall may have dimensions and materials, but the concept of a wall (type of entity) is part of the reference model. One must understand the concept of a wall in order to build a house that has walls.

  9. Working hypothesis - Wikipedia

    en.wikipedia.org/wiki/Working_hypothesis

    In the field of public administration working hypotheses are used as a conceptual framework for exploratory, applied, empirical research. [28] [29] [30] Research projects that use working hypotheses use a deductive reasoning or logic of inquiry. [3] In other words, the problem and preliminary theory are developed ahead of time and tested using ...