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The big 5 was initially developed via the lexical hypothesis. All the words which described human personality in the English language were compiled. Words which had a purely value oriented meaning (e.g. angel, jackass, scoundrel, hero) were excluded. This resu...

The inception of the big five theory relied upon the assumption that language was a good tool for investigating the underlying traits in human personality. The next stage built upon the lexical hypothesis and instead used self-assessment tests to see if the or...

Unlike some personality systems where someone originates the theory and every subsequent writer has to build on that theory, and attempts to totally re-engineer fundamental claims are viewed negatively (e.g. Carl Jung's work being the basis of MBTI theory) the...

The Revised NEO Personality Inventory (NEO PI-R) was developed by Paul Costa and Robert McCrae from the 1970s through to the 2000s. This is a version of the big 5 which subdivides each trait into six facets. This has become one of the most popular and influent...

Listed below are the facets that comprise the trait Openness according to the IPIP. O1: ImaginationHigh Scorers: Vivid imagination. Flights of fantasy. Often reflecting or lost in thought.Low Scorers: Do not daydream or become lost in thought. Do not have a s...

Listed below are the facets that comprise the trait Conscientiousness according to the IPIP. C1: Self-EfficacyHigh Scorers: Complete tasks successfully. Tend to excel in their endeavours. Self-assured. Find good solutions.Low Scorers: Can tend to misjudge and...

Listed below are the facets that comprise the trait Extraversion according to the IPIP. E1: FriendlinessHigh Scorers: Make friends easily. Warm. Comfortable around others. Raise the spirits of others.Low Scorers: Hard to get to know. Uncomfortable around and ...

Listed below are the facets that comprise the trait Agreeableness according to the IPIP. A1: TrustHigh Scorers: Trusting. Regard others as good, moral and well-intentioned. Low Scorers: Wary, suspicious and distrustful. Do not believe that others are moral an...

Listed below are the facets that comprise the trait Neuroticism according to the IPIP. N1: AnxietyHigh Scorers: Worry. Fearful. Stressed out.Low Scorers: Relaxed. Not bothered. Unperturbed. Don't worry. N2: AngerHigh Scorers: Irritable. Quick to anger. Easil...

If you have read the previous pages in this wiki you should now have a basic grasp of the five traits and some of their facets. But how do you actually apply them to a real world situation? How would you calculate the big 5 scores for yourself or someone else?...

It's important to know what qualifies as a moderate score. Many people have a tendency to overestimate Openness in their subjects because high Openness can be a conspicuous trait but low Openness doesn't seem to draw attention to itself. If we take Artistic In...

This page will guide you through an example of a thorough big 5 analysis. Instead of analysing a pre-existing personality this analysis will be of a hypothetical person. The reason for this is to focus on the method and the principles of this process and not g...

At the time of writing, the convention for moderating profile comments on PDB is that a comment must contain, A. a discussion of the subject's personality (e.g. not a discussion of whether or not you like their work) and, B. an argument that explains your thou...

SimilarMinds.com is a website, which is apparently managed by Tim Flynn. Tim Flynn does not appear to be a notable scientific researcher. He has no Wikipedia page and google searches turn up little or no information. On Similar Minds he shares his interests an...

Limitations of PDB's SLOAN System The PDB voting engine only allows for 32 SLOAN types, offering options of just high or low for each of the 5 traits. This means that the full nuance of a big five test result is not at all well represented by these 32 options...

Primary Argument Some PDB users have made the claim that SLOAN is actually a distinct system, which uses different definitions from the standard big 5 traits. Furthermore, they claim that because PDB opted to implement SLOAN into its voting engine, PDB users ...

Introduction There are studies which have attempted to map correlations between the big 5 and other personality systems but these studies are not always easy to locate, nor is it easy to assess the quality of the study or the competence of the author. Another...

This question (substituted with different SLOAN types) is possibly the most frequently asked question on the PDB big 5 forum. PDB users have a lot of difficulty understanding this issue because they assume that they can apply MBTI logic to SLOAN and that disco...

Yes Whilst a certain degree of development with age is outlined in the MBTI orthodoxy (e.g. the development of functions) one of the fundamental rules seems to be that a person will never change their MBTI type. Once your type is established you will be that ...

It has been noted by many PDB users that unlike other systems (Enneagram, MBTI) SLOAN types don't appear to be equal and some seem objectively "better" than others. This page will explore this issue. The Baseless Assumption That "All Types are Equal" Firstly...