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Is the OBA a bullshit analysis?

The OBA (online brain analysis) has been developed after 5 years of research with 8 renowned VCs. At first, it might be hard to tell the difference between an OBA and an online assessment, we know. Here's how the OBA is different.

Honestly, we don't believe in online assessments

Most assessments try to pin you down by asking your opinion on multiple subjects.

This method is the main cause of their cruel lack of reliability, for 3 reasons:

  1. Your opinion on a topic can change over time and be influenced by outside factors:
    "After a day of work, do you prefer a night out with friends or to stay at home to read a book?"
    At this very moment I am tired so I would rather go home than go party > the answer varies depending on exogenous factors
  2. It's quite easy to guess what is analyzed behind each question, which creates biases in the analysis results
    "You often lose your things"
    They are trying to determine whether or not I am organized > it's a job interview, I better say ***
  3. Your opinion on a subject does not reflect the way you operate. Two people who function in opposite ways can share the same opinion about some things, but not through the same thought process.
    "Would you rather have a child who's nice but stupid, or a child who's mean but intelligent" > this question is trying to determine if you are using rational or emotional thinking

    Person A: I’d rather have a nice child because the most important thing is to be nice to others - everyone should
    Person B: I’d rather a nice child because the most important thing is to succeed in life, and in order to do that building relationships is more important than pure intelligence

    Person A and Person B have picked the same answer: having a nice child. Yet, their thought processes leading to this decision were different. Most assessments aren't able to spot those differences, which leads to biased results.

For these reasons, the OBA is not based on direct questions asking for your opinion, but on stimuli words that test your brain's responsiveness.

Have you ever seen questions as weird as the ones in the OBA?

The brain is made up of 18 main areas, each one responsible for both our strengths and limitations at the same time.

Each area is sensitive to certain words and concepts that the OBA uses in its questions. Your answers are measured to determine how strongly you are reacting to each of these. This enables us to identify how your brain has been evolving since your birth, as well as what areas you will develop next.

Each question in the OBA use stimuli words

The OBA is so powerful that for 2 people reading the same sentence, one will be clueless about the meaning, while the other will perfectly understand what the question means.

This method allows the OBA to be much more precise despite a very quick analysis ≃ 15 mins.

How do we know it's accurate?

We have verified the results with brain data

To verify that the OBA questions had the intended impact on areas of the brain, we used electroencephalograms (EEG) to rigorously check the viability of stimuli words.

More precisely, we have tested every word on 48 people by observing their brain's responses to the EEG. By iterations, we were thus able to develop 8 consecutive versions of the OBA to retain the most reliable one.

It is the most accurate way to ensure the OBA works. With EEGs, we were able to directly measure the reaction of the brain in order to confirm the validity of the analysis.

We have tested the evolution of results over time

48 persons completed the OBA at 4 different times : first completion, +1 month later, +6 months, +12 months to ensure the results were the same.

In order to maintain the accuracy of our research, we used Pearson's correlation coefficient to verify the temporal stability of the data measured by the OBA: to what extent will a person obtain the same results today, as well as 6 months from now by answering the same questions.

This coefficient (r), gives an estimate of the degree of connection between two variables: the score of the OBA’s first completion, and the score of the OBA’s second completion by the same person.

The r coefficient thus determines the degree of correlation between the first assessment and the second. The closer r gets to 1, the more linear the correlation, resulting in stronger and more reliable data.

We set a goal of r=0.20 for each question. During the first iteration, 91% of our questions reached r=0.40, validating the initial correlation objective. The remaining questions were more complex (since they assess multiples brain zones at a time). We adjusted them over 8 consecutive versions. At last, we were able to reach our objective for all questions, guaranteeing a high level of reliability of results over time.


  • How will the OBA be useful to me?
    If you are a founder
    : Unfair uses the OBAs of entrepreneurs to help them avoid their startup killers: 20 reasons that kill startups, based on Unfair’s research on the successes/failures of over 1000 founders.
    If you are applying for a position: Unfair uses the OBA to determine the job positions and teams that will fit you the best in a startup, based on your natural behaviors and profound motivations.
    If you are just curious: the OBA helps you to better understand where your entrepreneurial potential lies. You can also choose to be put in touch with VCs or startups that are recruiting.
  • Can we manipulate the OBA’s responses?
    You can always select random answers to the OBA’s questions. However, those are designed to make your brain react to stimuli words, not to assess your direct opinion on a subject. The OBA measures your brain electrical activity. To guarantee the reliability of the analysis, Unfair has a 2-step checking process:
    1/ A confidence index measures the time spent to take the OBA, as well as the gaps in response coherences.
    2/ If this confidence index is too low, Unfair will manually check the answers. If this method is insufficient, a 10-minute call will be scheduled to check the consistency of the results.
  • What will you do with my data?
    The OBA meets the specifications of the GDPR. Only you have access to your results and you are asked for confirmation so that someone else can access them. You can request the deletion of your data at any time by sending a request by email at
  • Can my OBA change over time?
    People don't change, they evolve. This slight difference might seem tiny, yet it is crucial. Learn more
  • How did you build it more precisely?
    The OBA was built based on 5 years of research in neuroscience. Read the methodology we have followed


Unfair uses neurological data to help VCs make better investments. Through an online brain analysis, Unfair gives VCs more awareness about their decision-making process and helps them assess founders with the same technology.