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  2. Response surface methodology - Wikipedia

    en.wikipedia.org/wiki/Response_surface_methodology

    Response surface methodology uses statistical models, and therefore practitioners need to be aware that even the best statistical model is an approximation to reality. In practice, both the models and the parameter values are unknown, and subject to uncertainty on top of ignorance.

  3. Bertrand competition - Wikipedia

    en.wikipedia.org/wiki/Bertrand_competition

    Diagram 1 illustrates firm 1's best response function, ″ (), given the price set by firm 2. Note, M C {\displaystyle MC} in the diagram stands for marginal cost, c {\displaystyle c} . The Nash Equilibrium ( N {\displaystyle N} ) in the Bertrand model is the mutual best response; an equilibrium where neither firm has an incentive to deviate ...

  4. Best response - Wikipedia

    en.wikipedia.org/wiki/Best_response

    In game theory, the best response is the strategy (or strategies) which produces the most favorable outcome for a player, taking other players' strategies as given. [1] The concept of a best response is central to John Nash's best-known contribution, the Nash equilibrium, the point at which each player in a game has selected the best response (or one of the best responses) to the other players ...

  5. Item response theory - Wikipedia

    en.wikipedia.org/wiki/Item_response_theory

    The response of a person to an item can be modeled by a mathematical item response function (IRF). The trait is further assumed to be measurable on a scale (the mere existence of a test assumes this), typically set to a standard scale with a mean of 0.0 and a standard deviation of 1.0. Unidimensionality should be interpreted as homogeneity, a ...

  6. Scientific modelling - Wikipedia

    en.wikipedia.org/wiki/Scientific_modelling

    Scientific modelling is an activity that produces models representing empirical objects, phenomena, and physical processes, to make a particular part or feature of the world easier to understand, define, quantify, visualize, or simulate.

  7. Likert scale - Wikipedia

    en.wikipedia.org/wiki/Likert_scale

    Research by Labovitz [22] and Traylor [23] provide evidence that, even with rather large distortions of perceived distances between scale points, Likert-type items perform closely to scales that are perceived as equal intervals. So these items and other equal-appearing scales in questionnaires are robust to violations of the equal distance ...

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  9. Argument map - Wikipedia

    en.wikipedia.org/wiki/Argument_map

    An argument map or argument diagram is a visual representation of the structure of an argument. An argument map typically includes all the key components of the argument, traditionally called the conclusion and the premises , also called contention and reasons . [ 1 ]