The companys website boasts the assessment has a 90% accuracy rating and a 90% average test-retest correlation, “making it one of the most reliable and accurate personality assessments available.” Many researchers, however, have long questioned the MBTIs scientific merit.

How reliable are personality tests?

Personality assessments are valid and reliable. Personality tests are sold on the promise that they are valid (they measure what they say they will measure) and reliable (they produce consistent results). “Many studies over the years have proven the validity of the MBTI instrument,” says the Myers & Briggs Foundation .

What is the 16 personalities test based on?

Our personality types are based on five independent spectrums, with all letters in the type code (e.g. INFJ-A) referring to one of the two sides of the corresponding spectrum. You can see where you fall on each scale by completing our free personality assessment, NERIS Type Explorer®.

Which of the 16 personalities is the rarest?

INFJ Personality type: INFJ is the rarest Myers-Briggs combination.

What is the most common 16 personality type?

The most popular Myers Briggs personality type is ISFJ — 13.8% of the tested population falls under the introverted, sensing, feeling, and judgment classification.

Are personality tests unethical?

She said she believes using personality tests as a screening mechanism for hiring employees is unethical and potentially harmful to a company. They also usually dont take into account the variability of settings a person is placed in that can have a direct impact on their personality.