structural:expansion, linguistic:translation
Continuity vs discontinuity

One of the major discussions in developmental psychology includes whether development is discontinuous or continuous.

Continuous development is quantifiable and quantitative, whereas discontinuous development is qualitative. Quantitative estimations of development can be measuring the stature of a child, and measuring their memory or consideration span. "Particularly dramatic examples of qualitative changes are metamorphoses, such as the emergence of a caterpillar into a butterfly."

Those psychologists who bolster the continuous view of improvement propose that improvement includes slow and progressing changes all through the life span, with behavior within the prior stages of advancement giving the premise of abilities and capacities required for the other stages. "To many, the concept of continuous, quantifiable measurement seems to be the essence of science".

Not all psychologists, be that as it may, concur that advancement could be a continuous process. A few see advancement as a discontinuous process. They accept advancement includes unmistakable and partitioned stages with diverse sorts of behavior happening in each organization. This proposes that the development of certain capacities in each arrange, such as particular feelings or ways of considering, have a definite beginning and finishing point. Be that as it may, there's no correct time at which a capacity abruptly shows up or disappears. Although some sorts of considering, feeling or carrying on could seem to seem abruptly, it is more than likely that this has been developing gradually for some time.

Stage theories of development rest on the suspicion that development may be a discontinuous process including particular stages which are characterized by subjective contrasts in behavior. They moreover assume that the structure of the stages is not variable concurring to each person, in any case, the time of each arrangement may shift separately. Stage theories can be differentiated with ceaseless hypotheses, which set that development is an incremental process.