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Study Tip: How to Find the Hidden Bias in a Test

Study Tip: How to Find the Hidden Bias in a Test
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    Life isn’t fair. Why should tests be?

    Virtually all tests have have hidden biases. These biases aren’t usually large and most instructors will do their best to minimize it. However, knowing the bias of a test can be an added tool for allocating study time.

    What is a Testing Bias?

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    Testing bias is when a test favors students who understand particular concepts or have particular types of knowledge. An example would be a test that is all definitions. This obviously benefits students who understand the word associations and their meanings. Knowing how different concepts can be applied in real life wouldn’t be as relevant on such a test.

    Sometimes testing bias is intentional. Test creators will format the test so it evaluates the knowledge they want you to have. This is the best type of bias to look out for because it will probably continue into the future. The examiner who wants you to know definitions above all else will continue placing that bias into future tests.

    Sometimes the bias is a by-product of something else. Multiple-choice tests tend to evaluate certain types of understandings more strongly than essay-response tests. Information in a particular format may be difficult to test, so the test makers may bias the test towards concepts that are easier to evaluate.

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    What to Look Out For

    Here are some things to keep in mind when try to find the bias of a test:

    1. Memorization Versus Understanding. Does the test value students who can recite specific definitions and facts? Or does it value a comprehensive understanding more than memorized elements?
    2. Narrow Versus Broad. Does the test value students who can apply information within a narrow context or a broad one? The difference might mean emphasizing study time on specific, practical questions or spending more time thinking about different ways to use the information.
    3. Agreement Versus Quality. If the test has a subjective marking component, does the marker tend to value agreement with stated opinions or original thought? Some markers only want to hear reflections of their stated opinions. Others want you to write something thought provoking. Know the difference.
    4. Average Versus Extreme. What is the standard deviation of grades? Is virtually the same mark given for “showing effort” or are the mark differences high? When a lot of extra effort won’t yield better grades, save your time and invest it where time matters.
    5. Hinting Versus Tricking. Some tests will hint towards the correct answer in the question. Usually this isn’t obvious, but it can come from using words that might cause you to consider the correct choice. Other tests try to avoid this by doing the opposite – intentionally putting in leading words to throw you off-course. This bias can be helpful in evaluating your intuition.

    Those are just a few of the many different biases a test can have. Keep in mind that these biases are usually mild. They should serve as a guide for where you can emphasize study time, but can’t be used as a blueprint to ace a test you know nothing about (in most cases, at least).

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    How to Find a Testing Bias

    Now that you have a few ideas for what to look for, here are some places you can use to start devising a studying strategy:

    1. Past Tests. These are the goldmine of searching for testing bias. Scan through them and any answer keys provided. Not only can they give you generalized biases the test might have (as mentioned above) but also content biases. What specific information is tested repeatedly and what is rarely tested?
    2. Course Outlines. Usually the course will have a broad description of the purpose and evaluation methods of the course. This can be a starting point to uncover any potential biases.
    3. Talk to Past Students. Other students will have a good feel for what kind of biases a test demonstrated, even if they didn’t prepare for it themselves. Get a feel for what kind of questions were asked and where emphasis was placed. Warning: If you are going to use this approach, make sure you ask several students from different periods, otherwise you might be led to believe a test is biased when it was just randomness from that particular version or student.
    4. Ask Your Professor. I don’t find this to be as useful as asking past students. It can reveal any intentional biases, but often neglects the unintentional biases because of testing method. But asking professors can be useful for getting information about what is important and what is not.

    Don’t Obsess About Testing Bias, But Don’t Ignore It

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    Trying to find the testing bias won’t help you if you don’t know anything. Simply use it as a tool to allocate study time. If you realize there is a heavy memorization bias, spend more time with memorization techniques than exploring background concepts. It can also be used in-test when making decisions between several options. If the test has a hinting bias, you can feel more comfortable using your intuition when you aren’t sure.

    That warning said, testing bias does matter. Although I never intentionally go into a test without knowing the subject, I have done few extra-curricular exams that I wasn’t aware I needed to write before the test date. By searching for the testing bias I was able to score high despite not fully understanding many of the concepts covered.

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    Scott H Young

    Scott is obsessed with personal development. For the last ten years, he's been experimenting to find out how to learn and think better.

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    Last Updated on February 11, 2021

    20 Unusual Uses for Coca-Cola That You’ve Never Considered

    20 Unusual Uses for Coca-Cola That You’ve Never Considered

    Coca-Cola is an adored product the world over. While keeping yourself in good health means moderating how often you enjoy this drink, Coca-Cola lovers will be happy to hear that there are plenty of uses for the soda pop that don’t involve ingesting it. Impressively, Coca-Cola can be used to help you clean, get rid of rust, and even help maintain your garden. Whether you are looking for a way to finally get rid of those pesky stains, or just want to find new ways to love this drink, these 20 jaw-dropping and unusual uses for Coca-Cola will blow you away.

    Kill pests in your garden

    Coca-Cola is also an effective pest control method for your garden. To rid yourself of plant munching slugs and snails, pour a small bowl of Coca-Cola and place it near your garden or flowerbeds. The smell will attract these crawling bugs and the drink’s acidity will kill them.

    Defrost your windshield

    Incredibly, Coca-Cola can also defrost your windscreen in the wintertime. Simply pour Coke liberally across your windshield and wait about a minute. The ice should turn to slush for easy removal.

    Clean your pans

    Coca-Cola is also useful in the kitchen, especially on burnt pans. For any pan with burnt on messes, pour a can of Coke into the pan and simmer. The mess should easily wipe away. You can also soak kettles and other kitchen items in Coca-Cola to remove scale and build up.

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    Clean bugs from your windshield

    Another way Coca-Cola can aid in your car care is by removing bugs and gunk from your windshield. Soak a cloth in coke, then rub across your windshield. Just be careful not to get any on your paint job.

    Remove rust from your car

    Coca-Cola is also useful when removing rust. The simplest method is to dip crumpled tinfoil in Coca-Cola, then give the item a scrub and you should be rust free.

    Loosen rusty bolts

    Similarly, use Coca-Cola to loosen up a rusty bolt. Simply unscrew the bolt half a turn and pour on Coca-Cola. Let it sit, then give the metal a wipe. The bolt and screws will be one hundred percent in no time.

    Remove stains from your fabric

    Surprisingly, Coca-Cola is incredibly helpful when removing stains from clothing and fabric. Coke will easily remove grease stains, as well as blood spots. Remember that Coca-Cola itself is brown, so stains on light fabrics might be better removed another way.

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    Remove oil spots

    Another way to use Coca-Cola is to remove oil stains from cement. Whether it’s your garage or your driveway, soak the stain in Coca-Cola for a few hours then hose off.

    Relieve jellyfish stings

    Should you be unwilling to neutralize a jellyfish sting the traditional way (with urine) pouring Coca-Cola on the sting will also do the job.

    Clean your car engine

    Coca-Cola is also an effective ways to clean your car engine. Believe it or not, Coke distributors have reportedly been a fan of this technique for ages. 

    Use it in cooking

    Coca-Cola is also a fantastic addition to many recipes. Using Coca-Cola to cook pot roast or steaks in will easily tenderize the meat for you. Mixing Coke with ketchup or barbecue sauce also makes for a delightfully sweet glaze.

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    Clean your old coins

    Another way to use Coke to clean is to soak tarnished coins in the soda. About ten minutes should be enough to get rid of the muck.

    Clean your tiles

    Incredibly, Coca-Cola can also be applied to tiles to effectively clean grout. Let Coke sit on the tiles that need cleaning for a few minutes, then wipe away.

    Supercharge your compost

    Coke is also an impressive way to speed up your compost. The sugar in Coca-Cola feeds micro organisms, plus the acidity will help your compost break down faster.

    Remove gum from your hair

    Coca-Cola can also help you avoid a major hair disaster. If you have gum stuck in your hair, dip the gum into a small bowl of Coke and let it sit for a few minutes. The Coca-Cola breaks down the gum, allowing you to wipe it off.

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    Fade unwanted hair dye

    Similarly, if you made a mistake with your hair dye, Coca-Cola comes to the rescue. It’s probably best to get in the shower first, then pour Diet Coke over your hair. Let the soda sit for a few minutes, then wash your hair like normal. This method is effective in removing temporary hair dyes, but will likely only fade professionally applied dyes.

    Clean marker stains

    Coca-Cola is also an easy way to remove marker stains from carpet. Apply a small amount of Coke, scrub the spot, then clean with soapy water. Again, remember that Coca-Cola is brown, so removing stains on white or light-colored carpets might be better achieved with another method.

    Clean your toilet

    Coca-Cola can also help you clean elsewhere in the house. To easily clean a toilet, pour Coca-Cola all around the bowl and let it sit. There’s no need to scrub, simply flush and your toilet should be sparkling clean.

    Feed your plants

    Coca-Cola is also a surprising way to add a little extra life to some flowering plants. Particularly with azaleas and gardenias, adding a small amount of Coca-Cola to the soil can deliver nutrients your plant may be low on.

    Get rid of bugs at a picnic

    The last of our unusual uses for Coca-Cola is to safeguard your picnic or outdoor lunch from pests and wasps. Simply pour a small cup of Coca-Cola and set it out about a half hour before you start to eat. By placing the cup away from your site, bugs will be drawn to the soda and not your lunch.

    Featured photo credit: Omer Wazir via flickr.com

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