I believe the answer is: Cognitive
The cognitive approach of psychology focuses on how the thought that people have would affect their overall behaviour. Â The thought process would influence whether people see their problems in positive or negative lights. People who see them in negative perspective, tend to adopt a defeatist behaviour and tend to choose to run away from their problems rather than facing it.
Dr. Jackson has spent a lifetime studying how adults solve problems. It is likely that dr. Jackson specializes in the cognitive approach to psychology.
