Jacob is imaginative, creative, and seeks new experiences. sean is hardworking, ambitious, neat, and prides himself on never giving up until a task is finished. in terms of the big five, jacob would probably score high on the dimension of while sean would probably score high on the dimension of

The Big Five trait dimensions were identified by means of factor analysis. 
In terms of the big five,  Jacob would probably score high on the dimension of openness to experience (because he wants to explore new things), while Sean would probably score high on the dimension of conscientiousness (because he is never giving up until a task is finished).