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  2. Fact–value distinction - Wikipedia

    en.wikipedia.org/wiki/Fact–value_distinction

    The fact–value distinction is also closely related to the moralistic fallacy, an invalid inference of factual conclusions from purely evaluative premises. For example, an invalid inference "Because everybody ought to be equal, there are no innate genetic differences between people" is an instance of the moralistic fallacy.

  3. Mill's methods - Wikipedia

    en.wikipedia.org/wiki/Mill's_Methods

    Comparing the factors known about the countries above, a comparative political scientist would conclude that the government sitting on the centre-left of the spectrum would be the independent variable which causes a system of universal health care, since it is the only one of the factors examined which holds constant between the two countries ...

  4. Second moment method - Wikipedia

    en.wikipedia.org/wiki/Second_moment_method

    The infinite complete binary tree T is an infinite tree where one vertex (called the root) has two neighbors and every other vertex has three neighbors. The second moment method can be used to show that at every parameter p ∈ (1/2, 1] with positive probability the connected component of the root in the percolation subgraph of T is infinite.

  5. Two-alternative forced choice - Wikipedia

    en.wikipedia.org/wiki/Two-alternative_forced_choice

    Two-alternative forced choice (2AFC) is a method for measuring the sensitivity of a person or animal to some particular sensory input, stimulus, through that observer's pattern of choices and response times to two versions of the sensory input. For example, to determine a person's sensitivity to dim light, the observer would be presented with a ...

  6. Expected utility hypothesis - Wikipedia

    en.wikipedia.org/wiki/Expected_utility_hypothesis

    The expected utility hypothesis is a foundational assumption in mathematical economics concerning decision making under uncertainty.It postulates that rational agents maximize utility, meaning the subjective desirability of their actions.

  7. Model of hierarchical complexity - Wikipedia

    en.wikipedia.org/wiki/Model_of_hierarchical...

    The model of hierarchical complexity (MHC) is a formal theory and a mathematical psychology framework for scoring how complex a behavior is. [4] Developed by Michael Lamport Commons and colleagues, [3] it quantifies the order of hierarchical complexity of a task based on mathematical principles of how the information is organized, [5] in terms of information science.

  8. Heckman correction - Wikipedia

    en.wikipedia.org/wiki/Heckman_correction

    where D indicates employment (D = 1 if the respondent is employed and D = 0 otherwise), Z is a vector of explanatory variables, is a vector of unknown parameters, and Φ is the cumulative distribution function of the standard normal distribution. Estimation of the model yields results that can be used to predict this employment probability for ...

  9. McNamara fallacy - Wikipedia

    en.wikipedia.org/wiki/McNamara_fallacy

    The McNamara fallacy (also known as the quantitative fallacy), [1] named for Robert McNamara, the US Secretary of Defense from 1961 to 1968, involves making a decision based solely on quantitative observations (or metrics) and ignoring all others. The reason given is often that these other observations cannot be proven.