Mental age was first defined by French psychologist Alfred Binet with the assistance of Theodore Simon.
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Edward Thorndike developed the first three "Laws of learning" i.e. readiness, exercise and effect. Later, five additional laws have been added-primacy, recency, intensity, freedom and requirement.
Russian physiologist Ivan Pavlov in his series of experiment with dogs, concluded that behaviour can be changed using conditioning.
German psychologist Wolfgang Kohler developed insight learning theory while studying the behaviour of Apes.
Motivation is the process of energising, activating and stimulating people to actions for accomplishment of determined goal.
