Test How Delusional You Are

    By Bill Flavell | 18 November 2017
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    Delusion is not an oddity – it’s the norm. Almost all of us can slip into delusional thinking and it’s easy to see why. We all have a tendency to be confounded by cognitive biases. These are thinking errors that seem to be hard-wired into us. An example is the bandwagon effect which makes us feel an opinion that is widely held is probably true. Another example is the gambler’s fallacy which makes us feel the probabilities of a future event are influenced by past events (I’ve seen six heads in a row so the next toss is more likely to be a tail.) Confirm bias is very destructive of good thinking – it makes us pay attention to evidence that seems to support our beliefs and ignore contrary evidence. Psychologists have identified well over 100 such biases, and more are being discovered.

    You can think of delusional disorders as sitting on a continuum. At one end are the clinically ill (the 0.2% of people who believe they are deceased, or who believe a loved one has been replaced by an alien or a robot). In the middle are those who too readily accept unlikely things as true, and are reluctant to revise their beliefs even when shown contrary facts. At the extreme opposite end to those who are clinically ill are about 9% of the population who are free from delusional thinking and will readily change an opinion once presented with validated counter-facts.

    There is no doubt that religious people will be scattered along this scale – the strongly fundamentalists closer to the 0.2% of clinically ill people and the more liberal around the middle. But atheists are not blameless here. With only 9% of people free from from delusional thinking, atheists are bound to be scattered across the continuum too.

    Research has shown that intuitive people, who have a tendency to jump to conclusions on inadequate evidence, are likely to have more delusional thinking than analytical people who take their time before coming to a conclusion.

    There is now a test you can do easily at home to assess how susceptible you are to delusional thinking. It’s known as the Peters Delusion Inventory. Try it. Answer each of the 21 questions below and give yourself one point for each YES answer and zero points for each NO answer, then add your points to get a final score. If you want an accurate result, you must be honest.

    I predict that religious people will have a higher Delusion Inventory score than non-religious people.

    The Test

    1. Do you ever feel as if people seem to drop hints about you or say things with a double meaning?
    2. Do you ever feel as if things in magazines or on TV were written especially for you?
    3. Do you ever feel as if some people are not what they seem to be?
    4. Do you ever feel as if you are being persecuted in some way?
    5. Do you ever feel as if there is a conspiracy against you?
    6. Do you ever feel as if you are, or destined to be someone very important?
    7. Do you ever feel that you are a very special or unusual person?
    8. Do you ever feel that you are especially close to God?
    9. Do you ever think people can communicate telepathically?
    10. Do you ever feel as if electrical devices such as computers can influence the way you think?
    11. Do you ever feel as if you have been chosen by God in some way?
    12. Do you believe in the power of witchcraft, voodoo or the occult?
    13. Are you often worried that your partner may be unfaithful?
    14. Do you ever feel that you have sinned more than the average person?
    15. Do you ever feel that people look at you oddly because of your appearance?
    16. Do you ever feel as if you had no thoughts in your head at all?
    17. Do you ever feel as if the world is about to end?
    18. Do your thoughts ever feel alien to you in some way?
    19. Have your thoughts ever been so vivid that you were worried other people would hear them?
    20. Do you ever feel as if your own thoughts were being echoed back to you?
    21. Do you ever feel as if you are a robot or zombie without a will of your own?

    Your Results

    1-5 You are less prone to delusions than most. Your thinking style is probably more analytical than intuitive.
    6-7 Congratulations! You are normal. The average score is 6.7, with no difference between men and women.
    8-21 You are more prone to delusions than most. You are likely to think intuitively and jump to conclusions.

    Credit: Schizophr Bull. 2004;30(4):1005-22.
    Measuring delusional ideation: the 21-item Peters et al. Delusions Inventory (PDI).

    Reprinted with permission from the author.

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    3 COMMENTS

    1. I only scored 19/21! I don't have a partner to be unfaithful for #13, and I'm certain I'm no heavy sinner for #14.

      Anyone got a Black Jack, or did I win? Hit me!

    2. Seriously? I have difficulty believing that anyone over the age of 10 would say yes to at least 19 of these questions.
      I mean, I'm not wrong am I? Please tell me I'm not wrong….

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