WhatWhat are the strengths and weaknesses of LOT-R? How come LOT-R is used pre and post positive intervention especially since it measures dispositional optimism, which is a character trait and is unlikely to change within such a short period of time (a few days or weeks?

By analogy, what are the strengths and weaknesses of the Trait Hope Scale? How come this instrument is used to test pre and post intervention especially that it measures a character trait that is unlikely to change within a short period of time (a few days or weeks ).

Thank  you

Have a happy new year

Ibrahim