Crystal’s Guide to
Personality Types

DISC is a "four-factor" personality model, meaning that it groups people into four categories based on behavior patterns. Each category consists of a set of personality traits. Everyone has a primary category, and often a second category. You can see details about each category below.

DISC was developed in the early 1900s by psychologist William Marston, the same man who also happened to create Wonder Woman and the polygraph. It resembles other four-factor models that have been around for more than 2,000 years, when Hippocrates first described the “four temperaments”.

The 16 Personalities Type Indicator is a very well-known personality assessments. Inspired by the work of Katharine Cook Briggs, her daughter Isabel Briggs Myers, and Carl Jung, 16 Personalities has become especially popular in modern workplaces to help companies better understand their employees.

The Enneagram is a personality model that dates back more than a thousand years. Though it’s unclear just how it began, it has recently exploded in popularity. The Enneagram consists of 9 main, overarching types that interact with one another in unique ways. This model also features “wings,” which is a way of describing when an individual primarily shows the characteristics of one type but shares a few with another type as well.

The Big Five, or Five Factor Model, is widely considered the most scientifically accurate personality model, as it is often used for psychological studies. It consists of five traits that have their own causes and behaviors. They do not correlate with one another across any population.