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The KR-20 may be affected by difficulty of the test, the spread in scores and the length of the examination. In the case when scores are not tau-equivalent (for example when there is not homogeneous but rather examination items of increasing difficulty) then the KR-20 is an indication of the lower bound of internal consistency (reliability).
Fitts also proposed an index of performance (IP, in bits per second) as a measure of human performance. The metric combines a task's index of difficulty (ID) with the movement time (MT, in seconds) in selecting the target. In Fitts's words, "The average rate of information generated by a series of movements is the average information per ...
The FIG gives difficulty points for number of somersaults, number of body twists and the body position in somersaults (piked or straight). The total sum of the individual elements forms the difficulty score component of competitor's final score: [14] [15] Each 1/4 rotation of a somersault = 0.1 DD; Completed 360° somersault (bonus) = 0.1 DD
The D-score (or difficulty score) indicates the difficulty of the exercise on three criteria: Difficulty Value (DV): The difficulty value of a routine is the combined total of the eight elements with the highest value according to the Table of Elements. The dismount is included as one of the eight elements.
The term "sport psychology" was first used back in 1900 by Pierre de Coubertin. The field saw notably contributions from the pioneers in Wundt and de Coubertin in the early 1900s. [6] The birth of sport psychology in Europe happened largely in Germany. The first sport psychology laboratory was founded by Dr. Carl Diem in Berlin, in the early ...
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.
Sport, Exercise, and Performance Psychology is a peer-reviewed academic journal published by the American Psychological Association. The journal was established in 2011 and covers research "that supports the application of psychological principles to facilitate peak sport performance, enhance physical activity participation, and achieve optimal ...
(For example, a respondent's scale score of 2 implies that that respondent responded positively to questions 1 and 2 and negatively to questions 3, 4, and 5.) Guttman scale, if supported by data, is useful for efficiently assessing subjects (respondents, testees or any collection of investigated objects) on a one-dimensional scale with respect ...