Dr. jackson has spent a lifetime studying how adults solve problems. it is likely that dr. jackson specializes in the approach to psychology.

The answer is "cognitive approach to psychology".

The cognitive approach in psychology refers to a generally present day approach to deal with human conduct that spotlights on how we think. It accept that our points of view influence the manner by which we behave.n differentiate, different methodologies consider different components, for example, the natural approach, which recognizes the impacts of hereditary qualities and  chemical imbalances on our conduct.