It’s the rarest personality type of them all, but how do you know if you’re an INFJ?

Also known as “The Advocate”, an INFJ (Introversion, Intuition, Feeling, Judging) personality is a very specific type of introvert that makes up around one per cent of the general population.

They are typically highly organised, complex and creative individuals, which might explain why so many talented celebrities are rumoured to be INFJs, such as Nicole Kidman, Lady Gaga and Daniel Day Lewis.

An INFJ is one of the 16 personality types listed on the Myers-Briggs Type Indicator (MBTI), a self-assessment personality questionnaire developed by Katharine Cook Briggs and her daughter Isabel Briggs Myers in the 1940’s.

The self-report tool was derived from theories proposed by Swiss psychiatrist Carl Jung, who claimed that humans experience the world via four primary psychological channels: sensation, intuition, feeling and thinking.

Jung’s theories speculate that most people’s personalities are predominantly defined by at least one of these functions.

Swiss psychologist Carl Gustav Jung (1875 - 1961) (Central Press/Getty Images)

For INFJ types, the prevailing functions are feeling and intuition.

According to the MBTI scale, these are the character traits that indicate you might be an INFJ type:

Seeks harmony and cooperation Enjoys intellectual stimulation Always comes up with large-scale ideas Prefers to be alone Describes things in a poetic way Avoids being the centre of attention Values forgiveness Always sticks to deadlines Hates confrontation Prefers step-by-step instructions Likes to plans ahead Relishes in pleasing people Enjoys ideas for the sake of them Always looks at the bigger picture Overthinks almost everything Keeps things private