Thus he follows this model immediately with a stage theory outlining the process of psychosynthesis.

The two stage theory was applied to countries worldwide which had not passed through the capitalist stage.

The "stage theory," as it came to be known, quickly created a paradigm for how Americans die.

Perhaps the stage theory of grief caught on so quickly because it made loss sound controllable.

Many people believe his 6 stage theory was sexist because only males were in the test group for this study.

According to the "stage theory," the process includes stages of disbelief, followed by yearning for the lost loved one, anger, depression, and acceptance.

(etc.) It was from this that the ideas formalized in his later stage theory first emerged.

The term "stage theory" can thus be applied to various scientific, sociological and business disciplines.

In continental European circles, stage theory never took hold in the same way.

There are many stage (discontinuous) theories in developmental psychology including: