Scalar implicature

In a 2006 experiment with Greek-speaking five-year-olds' interpretation of aspectual expressions, the results revealed that children have limited success in deriving scalar implicatures from the use of aspectual verbs such as "start" (which implicates non-completion).

[5] In addition, the tested children were able to suspend scalar implicatures in environments where they were not supported.

[5] Griceans attempt to explain these implicatures in terms of the maxim of quantity, according to which one is to be just as informative as required.

Some examples of scalar implicature[6] are: Uttering the sentence (a) in most cases will communicate the assumption in (b).

This seems to be because the speaker did not use stronger terms such as 'there will be more than five people for dinner tonight' or 'she can't possibly get the job'.