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  2. Two-point discrimination - Wikipedia

    en.wikipedia.org/wiki/Two-point_discrimination

    Two-point discrimination (2PD) is the ability to discern that two nearby objects touching the skin are truly two distinct points, not one.It is often tested with two sharp points during a neurological examination [1]: 632 [2]: 71 and is assumed to reflect how finely innervated an area of skin is.

  3. Tactile discrimination - Wikipedia

    en.wikipedia.org/wiki/Tactile_discrimination

    Two-point discrimination (2PD) is a neurological examination in which two sharp points are applied to the surface of a part of the body in order to see if the patient recognizes them as two discrete sensations. [2] The two-point threshold is the smallest distance between the two points that the patient can recognize. [17] By conducting this ...

  4. 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 ...

  5. Somatosensory system - Wikipedia

    en.wikipedia.org/wiki/Somatosensory_system

    The two different types of mechanoreceptor in the skin are termed low-threshold mechanoreceptors, and high threshold mechanoreceptors. The four mechanoreceptors in glabrous skin are low-threshold that respond to harmless stimuli. They are innervated by four different afferent fibers. High-threshold mechanoreceptors, respond to harmful stimuli. [7]

  6. Item response theory - Wikipedia

    en.wikipedia.org/wiki/Item_response_theory

    The two-parameter model (2PL) assumes that the data have no guessing, but that items can vary in terms of location and discrimination (). The one-parameter model (1PL) assumes that guessing is a part of the ability and that all items that fit the model have equivalent discriminations, so that items are only described by a single parameter ( b i ...

  7. Esthesiometer - Wikipedia

    en.wikipedia.org/wiki/Esthesiometer

    It can determine how short a distance between two impressions on the skin can be distinguished. To differentiate between two points and one point of equal area (the sum of the areas of the two points equals the area of the third point), Dr. Sidney Weinstein created the three-point esthesiometer.

  8. Allport's Scale - Wikipedia

    en.wikipedia.org/wiki/Allport's_scale

    Allport's Scale of Prejudice and Discrimination is a measure of the manifestation of prejudice in a society. It was devised by psychologist Gordon Allport in 1954. [ 1 ] [ 2 ]

  9. File:Historical Average ACT Scores.svg - Wikipedia

    en.wikipedia.org/wiki/File:Historical_Average...

    Updated data through the class of 2017. 14:48, 10 October 2015: 512 × 341 (58 KB) Erjwiki: Updated for the class of 2015. 19:27, 1 November 2014: 512 × 341 (57 KB) Erjwiki: Updated for data from the senior class of 2014. 14:08, 15 May 2014: 512 × 341 (57 KB) Erjwiki: Fixed text notes in chart going past the right chart border.