Psychological personality tests do have appropriate uses, but based on statistical research, its determined that they may not be the most reliable and accurate means of illustrating a persons entire personality.
How accurate is personality testing?
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 .
Why personality tests are unreliable?
It is unreliable because a persons type may change from day to day. It gives false information (“bogus stuff,” one researcher puts it). The questions are confusing and poorly worded. Vazire sums it up as “shockingly bad.”
Can personality tests be wrong?
The way we process results makes them feel really accurate. Personality tests can seem very accurate even when they are not. Similarly, when we read the description of our own personality type from one of these tests, it often feels spot on, as if the people who created the test know us very well.
Are personality tests valid?
So...are personality tests valid? The answer is yes, there are personality test types that can inform valid and predictive talent and HR decisions. But the examples that come to mind when we hear the term “personality test” — like Myers Briggs and DiSC — dont exactly have legs to stand on.