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In statistics, multivariate adaptive regression splines (MARS) is a form of regression analysis introduced by Jerome H. Friedman in 1991. [1] It is a non-parametric regression technique and can be seen as an extension of linear models that automatically models nonlinearities and interactions between variables.
The behavioral theory of the firm first appeared in the 1963 book A Behavioral Theory of the Firm by Richard M. Cyert and James G. March. [1] The work on the behavioral theory started in 1952 when March, a political scientist, joined Carnegie Mellon University, where Cyert was an economist. [2]
Each behavioural change theory or model focuses on different factors in attempting to explain behaviour change. Of the many that exist, the most prevalent are learning theories, social cognitive theory, theories of reasoned action and planned behaviour, transtheoretical model of behavior change, the health action process approach, and the BJ Fogg model of behavior change.
The history of Mars observation is about the recorded history of observation of the planet Mars. Some of the early records of Mars' observation date back to the era of the ancient Egyptian astronomers in the 2nd millennium BCE. Chinese records about the motions of Mars appeared before the founding of the Zhou dynasty (1045 BCE).
Later Martin Fishbein and Icek Ajzen [5] extended expectancy-value theory into the theory of reasoned action (TRA) by adding the element of intention. Then, they took the element of intention into account and created the theory of planned behavior. [3] The RAA iteration brings together those earlier versions and provides a more comprehensive view.
A supporting model is the Fogg Behaviour Model (FBM), [4] which states that a user must be motivated first before having the ability to perform the change in their behavior, which is triggered by either intrinsic or extrinsic factors (The term "trigger" was changed by the author in late 2017 and the term "prompt" is now being used). [5]
The Vicarious Hypothesis, or hypothesis vicaria, was a planetary hypothesis proposed by Johannes Kepler to describe the motion of Mars. [1] [2] [3] The hypothesis adopted the circular orbit and equant of Ptolemy's planetary model as well as the heliocentrism of the Copernican model.
A positivistic approach to behavior research, TRA attempts to predict and explain one's intention of performing a certain behavior.The theory requires that behavior be clearly defined in terms of the four following concepts: Action (e.g. to go, get), Target (e.g. a mammogram), Context (e.g. at the breast screening center), and Time (e.g. in the 12 months). [7]