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We Often See Quite a Lot of Interesting Research Findings, but How Many of Them Are Trustworthy?

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We Often See Quite a Lot of Interesting Research Findings, but How Many of Them Are Trustworthy?

Experimenter bias plagues research publications every year.

Experimenters, their studies, and their results are far from perfect.

We have all heard of the academic misconduct, intentional manipulation, and researchers who blatantly lie in their research.

However, it is safe to assume that most researchers have good intentions when performing experiments and writing publications.

Despite good intentions, it is important to understand that all researchers are subject to one major downfall: experimenter bias.

Understanding Experimenter Bias [1]

In its simplest form, bias is when our mind tends to favor something.

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We all have our own set of bias, including our political views, our ideology, or what we expect from someone or something.

These biases influence how we speak, what we do, or who we vote for.

This isn’t only the case in everyday living, but in research as well.

Experimenters struggle to keep their preconceived notions out of their experiments. Unfortunately, this can happen during their experiment and influence the results.

This process is termed experimenter bias.

How Experimenter Bias Happens

When experimenters interact too closely with their subjects, or have preconceived notion of what to expect, biases start influencing the experiment. These effects are usually subtle, and often times even unintentional.

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In fact, most researchers may get so caught up in their research that they get trapped in their own hypothesis.

For instance, a researcher might over explain the intended results to their subjects, and the knowledge the subjects gain can influence their behavior.

Experimenter and subject interaction isn’t the only source experimenter bias either.

Experimenter bias can also be in the form of the design. Becoming too infatuated with their outcome can cause them to manipulate the experiment.

Examples of Experimenter Bias [2]

We are all familiar with the bodybuilding supplement industry. They often show their products producing incredible strength gains or weight loss results through multiple “studies”, while a different study with the same ingredients fail to indicate anything. If these are considered clinical studies, they can often times be an example of experimenter bias.

Essentially, the researchers altered specific aspects of their experiments to produce the results they were hoping to see, either with participants they choose, the way they interacted with their subjects, or by the way they designed the testing.

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However, not all types of experimenter bias are intentional.

One of the most popular examples of experimenter bias was done by Rosenthal and Fode in 1963 (2). In this example, two groups of students received rats to analyze. These rats were suppose to be judged on their ability to navigate a maze. One group was told their rats were “bright” while another was told their rats were “dull”, although in reality both groups were randomized without any different characteristics.

The students who analyzed the “bright group” rated their rats more highly then did the “dull group”. In essence, the group who anticipated their rats to perform well, influenced their actions to prove it. Rosenthal and Fode noted that this may have even been done unconsciously.

How Researchers Reduce Experimenter Bias [3]

Extensive Peer Review Process

If enough qualified “eyes” review the publication, then hopefully the biases become identified and the experiment isn’t published.

Blind Data Collectors

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This is achieved by having data collecting personnel unaware of the subjects (both the control and experimenter group) and unaware of the hypothesis. Therefore, they don’t know what the expected outcome is when they perform the experiment and collect the results.

Double-Blind Experimenter Design

With double-blind studies, both the experimenter and subjects are unaware of which group is controlled and which group is experimental. In addition, the design of the experiment can also be done by someone who is unaware of the hypothesis.

How You can Identify Experimenter Bias as a Reader

Look for key aspects including:

  • A control group
  • It is a “double-blind” experiment, both the experimenter and subjects are withheld from knowing which group is the control and which is the experimental
  • The funder isn’t influencing or interacting with the experiment
  • Evidence that the publication went through a rigid review process
  • That the selection of applicants was randomized
  • Assure that the control group was evaluated as thoroughly as the experimental group

If any of these criteria aren’t meant, you should start analyzing the publication more rigidly and start questioning its quality and you should begin questioning if its worth citing.

What Should Be Taken Away From This?

  • It is necessary to read the entire research publication and not just the abstract and results.
  • It is essential as readers that we can identify and disseminate when a bias is occurring.
  • Understanding the context of the experiment is just as important as understanding the results.
  • Even the best researchers with the greatest intentions are still susceptible to bias errors

As readers, it is just as much our responsibility to interpret and understand the literature as it is for researchers to produce honest and quality literature.

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The next time you hear somebody talk about a “study” or “research” make sure to question them on experiment, and don’t be afraid to discuss biases.

Reference

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Nicole Stone

Professional Writer | Content Strategist | Blogger

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Last Updated on February 11, 2021

20 Amazing Facts About Dreams that You Might Not Know About

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20 Amazing Facts About Dreams that You Might Not Know About

Dreams — Mysterious, bewildering, eye-opening and sometimes a nightmarish living hell. Dreams are all that and much more.

Here are 20 amazing facts about dreams that you might have never heard about:

Fact #1: You can’t read while dreaming, or tell the time

    If you are unsure whether you are dreaming or not, try reading something. The vast majority of people are incapable of reading in their dreams.

    The same goes for clocks: each time you look at a clock it will tell a different time and the hands on the clock won’t appear to be moving as reported by lucid dreamers.

    Fact #2: Lucid dreaming

    There is a whole subculture of people practicing what is called lucid or conscious dreaming. Using various techniques, these people have supposedly learned to assume control of their dreams and do amazing things like flying, passing through walls, and traveling to different dimensions or even back in time.

    Want to learn how to control your dreams? You can try these tips:

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    Lucid Dreaming: This Is How You Can Control Your Dreams

    Fact #3: Inventions inspired by dreams

    Dreams are responsible for many of the greatest inventions of mankind. A few examples include:

    • The idea for Google -Larry Page
    • Alternating current generator -Tesla
    • DNA’s double helix spiral form -James Watson
    • The sewing machine -Elias Howe
    • Periodic table -Dimitri Mendeleyev

    …and many, many more.

    Fact #4: Premonition dreams

    There are some astounding cases where people actually dreamt about things which happened to them later, in the exact same ways they dreamed about.

    You could say they got a glimpse of the future, or it might have just been coincidence. The fact remains that this is some seriously interesting and bizarre phenomena. Some of the most famous premonition dreams include:

    • Abraham Lincoln dreamt of His Assassination
    • Many of the victims of 9/11 had dreams warning them about the catastrophe
    • Mark Twain’s dream of his brother’s demise
    • 19 verified precognitive dreams about the Titanic catastrophe

    Fact #5: Sleep paralysis

    Hell is real and it is called sleep paralysis. It’s the stuff of true nightmares. I’ve been a sleep paralysis sufferer as a kid and I can attest to how truly horrible it is.

    Two characteristics of sleep paralysis are the inability to move (hence paralysis) and a sense of an extremely evil presence in the room with you. It doesn’t feel like a dream, but 100% real. Studies show that during an attack, sleep paralysis sufferers show an overwhelming amygdala activity. The amygdala is responsible for the “fight or flight” instinct and the emotions of fear, terror and anxiety. Enough said!

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    Fact #6: REM sleep disorder

    In the state of REM (rapid-eye-movement) stage of your sleep your body is normally paralyzed. In rare cases, however, people act out their dreams. These have resulted in broken arms, legs, broken furniture, and in at least one reported case, a house burnt down.

    Fact #7: Sexual dreams

    The very scientifically-named “nocturnal penile tumescence” is a very well documented phenomena. In laymen’s term, it simply means that you get a stiffy while you sleep. Actually, studies indicate that men get up to 20 erections per dream.

    Fact #8: Unbelievable sleepwalkers

      Sleepwalking is a very rare and potentially dangerous sleep disorder. It is an extreme form of REM sleep disorder, and these people don’t just act out their dreams, but go on real adventures at night.

      Lee Hadwin is a nurse by profession, but in his dreams he is an artist. Literally. He “sleepdraws” gorgeous portraits, of which he has no recollection afterwards. Strange sleepwalking “adventures” include:

      • A woman having sex with strangers while sleepwalking
      • A man who drove 22 miles and killed his cousin while sleepwalking
      • A sleepwalker who walked out of the window from the third floor, and barely survived

      Fact #9: Dream drug

      There are actually people who like dreaming and dreams so much that they never want to wake up. They want to continue on dreaming even during the day, so they take an illegal and extremely potent hallucinogenic drug called Dimethyltryptamine. It is actually only an isolated and synthetic form of the chemical our brains produce naturally during dreaming.

      Fact #10 Dream-catcher

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        The dream-catcher is one of the most well-known Native American symbols. It is a loose web or webs woven around a hoop and decorated with sacred objects meant to protect against nightmares.

        Fact #11: Increased brain activity

        You would associate sleeping with peace and quiet, but actually our brains are more active during sleep than during the day.

        Fact #12: Creativity and dreams

        As we mentioned before, dreams are responsible for inventions, great artworks and are generally just incredibly interesting. They are also “recharging” our creativity.

        Scientists also say that keeping a dream diary helps with creativity.

        In rare cases of REM disorder, people actually don’t dream at all. These people suffer from significantly decreased creativity and perform badly at tasks requiring creative problem solving.

        Fact #13: Pets dream too

          Our animal companions dream as well. Watch a dog or a cat sleep and you can see that they are moving their paws and making noises like they were chasing something. Go get ’em buddy!

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          Fact #14: You always dream—you just don’t remember it

          Many people claim that they don’t dream at all, but that’s not true: we all dream, but up to 60% of people don’t remember their dreams at all.

          Fact #15: Blind people dream too

          Blind people who were not born blind see images in their dreams but people who were born blind don’t see anything at all. They still dream, and their dreams are just as intense and interesting, but they involve the other senses beside sight.

          Fact #16: In your dreams, you only see faces that you already know

            It is proven that in dreams, we can only see faces that we have seen in real life before. So beware: that scary-looking old lady next to you on the bus might as well be in your next nightmare.

            Fact #17: Dreams tend to be negative

            Surprisingly, dreams are more often negative than positive. The three most widely reported emotions felt during dreaming are anger, sadness and fear.

            Fact #18: Multiple dreams per night

            You can have up to seven different dreams per night depending on how many REM cycles you have. We only dream during the REM period of sleep, and the average person dreams one to two hours every night.

            Fact #19: Gender differences

            Interestingly, 70% of all the characters in a man’s dream are other men, but women’s dream contain an equal amount of women and men. Also men’s dreams contain a lot more aggression. Both women and men dream about sexual themes equally often.

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            Fact #20: Not everyone dreams in color

            As much as 12% of people only dream in black and white.

            Featured photo credit: Unsplash via unsplash.com

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