The 2005 AHA Guidelines for CPR and ECC did note that if the rescuer was unwilling or unable to provide ventilations, the rescuer should provide chest compressions only. Hands-Only CPR or CPR with both compressions and rescue breaths.
In psychology, the Big Five personality traits are five broad domains or dimensions of personality that are used to describe human personality, otherwise described as the five-factor model (FFM). The five factors are openness, conscientiousness, extraversion, agreeableness, and neuroticism.
They are especially interested in finding which traits are broad and possibly genetically based, as opposed to ones that are rather peculiar and can change easily. Over the years, we have had a number of theories that attempt to describe the key traits of human beings. Carl Jung and the Myers-Briggs. One of the earliest trait theories was introduced by a colleague of Sigmund Freud's by the name of Carl Jung. Jung was never completely sold on Freud's ideas, and soon left his circle to develop his own theory.