This section has been organized historically: we gradually reviewed arguments about human attachment behaviours that were voiced as evidence was building up. The initial theories and hypotheses put forward by such researchers as Lorenz or Bowlby were rejected in some aspects and had to be supplemented in other aspects.

One of the components of the knowledge framework that is applied in TOK to the analysis of an area of knowledge is its “historical development”. Does the development of ideas in the eld of infant attachment that we reviewed in this section resemble the development of ideas in any other area of knowledge?

If you had to represent this development graphically, what would it be—a straight line, a sine function, a spiral or chaotic

uctuations?

Think about it in connection with such concepts as paradigm, paradigm shift, scientic revolution, replication, refutation and reductionism.