In 1959, Frederick Herzberg, a behavioural scientist proposed a two-factor theory or the motivator-hygiene theory. According to Herzberg, there are some job factors that result in satisfaction while there are other job factors that prevent dissatisfaction.
In the late 1960s, Locke's pioneering research into goal setting and motivation gave us our modern understanding of goal setting. In his 1968 article "Toward a Theory of Task Motivation and Incentives," he showed that clear goals and appropriate feedback motivate employees.
Maslow's Hierarchy of Needs by Saul McLeod, updated May 21, 2018 Maslow's hierarchy of needs is a motivational theory in psychology comprising a five-tier model of human needs, often depicted as hierarchical levels within a pyramid.
McClelland's Human Motivation Theory states that every person has one of three main driving motivators: the needs for achievement, affiliation, or power. These motivators are not inherent; we develop them through our culture and life experiences.
Reinforcement theory of motivation was proposed by BF Skinner and his associates. It states that individual’s behaviour is a function of its consequences. It is based on “law of effect”, i.e, individual’s behaviour with positive consequences tends to be repeated, but individual’s behaviour with negative consequences tends not to be repeated.
Vroom expectancy motivation theory Vroom expectancy motivation theory Whereas Maslow and Herzberg look at the relationship between internal needs and the resulting effort expended to fulfil them, Vroom's expectancy theory separates effort (which arises from motivation), performance, and outcomes.