Prominent stage theories of cognitive development show evidence of a s
tructure in which each stage contains a number of subsidiary levels. C
omparisons of the stages in these theories have commonly been made thr
ough the established links with stages of Piaget's theory. In response
to Kagan's criticism of Piaget's theory, features of these developmen
tal theories were used in this paper as the basis for a general framew
ork of interactive stages and levels of cognitive operations. Some imp
lications of the proposed framework in relation to cognitive developme
nt theories and directions for further research are examined. Further
application of this framework could help to identify commonalities in
cognitive operations across different contents, contexts and cultures.