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Cognitive Biases: Three Common Types Illustrated

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In a world of information overload, we can fall victim to all sorts of cognitive biases. Since they can lead us to generate false conclusions, it’s particularly important to understand what these biases are and how they work, as the consequences can become quite drastic.

Confirmation bias, sampling bias, and brilliance bias are three examples that can affect our ability to critically engage with information. Jono Hey of Sketchplanations walks us through these cognitive bias examples, to help us better understand how they influence our day-to-day lives.

Confirmation Bias

Cognitive Bias Examples - Confirmation

One of the most-commonly encountered and understood, you’re likely to have already heard about confirmation bias. This cognitive bias affects the way we test and evaluate hypotheses every day.

In simple terms, confirmation bias is the tendency to seek out or interpret evidence in such a way that supports our own strongly-held beliefs or expectations. This means that, given access to the same set of data and information, different people can come to wildly differing conclusions.

Feeding into confirmation bias can lead us to make ill-informed choices or even reinforce negative stereotypes. For this reason, it is important to remember to seek out information that both confirms and contradicts your presumptions about a certain topic.

Sampling Bias

Cognitive Bias Examples - Sampling

Sampling bias is a kind of bias that allows us to come to faulty conclusions based on inaccurate sample groups or data. Generally, the cause of sample bias is in poor study design and data collection.

When polling individuals for survey questions, it is important to get a representative picture of an entire population. But this can prove surprisingly difficult when the people generating the study are also prone to human flaws, including cognitive biases.

A common example involves conducting a survey on which political party is likely to win an election. If the study is run by a professor who only polls college students, since they are around and therefore easier to collect information from, the poll will not accurately reflect the opinions of the general population.

To avoid sampling bias, it is important to randomize data collection to ensure responses are not skewed towards individuals with similar characteristics.

Brilliance Bias

Cognitive Bias Examples - Brilliance

Brilliance bias is another common cognitive bias that makes us more likely to think of genius as a masculine trait. This is in part due to the lack of female representation in both traditional academic and executive positions.

In fact, The Journal of Experimental Social Psychology published an in-depth study on brilliance bias in 2020. It suggests that a likely source of this bias is in the uneven distribution of men and women across careers typically associated with higher level intelligence.

While this distribution is a remnant of historical factors that limited access to education and career choices for women in the past, its presence has made us (wrongly) conclude that women are less brilliant instead. Naturally, as the cycle perpetuates the uneven distribution of women in these careers, it only reinforces this bias.

Other Cognitive Bias Examples

These few examples from Jono Hey give a good overview of some of the biases we face when trying to understand the data given to us, but they are just the tip of the iceberg.

It is important to be cognizant of these biases in an era where we are constantly engaging with information, especially if we want to combat some of the harmful consequences they entail.

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This article was published as a part of Visual Capitalist's Creator Program, which features data-driven visuals from some of our favorite Creators around the world.

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Mapped: Minimum Wage Around the World

This infographic shows the net minimum wage across 67 countries, as of January 2023. A breakdown by U.S. state is also included.

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Mapped: Minimum Wage Around the World

The purpose of a minimum wage is to establish a baseline income level for workers in a given jurisdiction. Ideally it’s enough to cover basic needs like food and housing, but this isn’t always a guarantee.

To see how the minimum wage differs around the world, we’ve visualized data from Picodi, which includes values for 67 countries as of January 2023.

Monthly Minimum Wage, by Country

The following table includes all of the data used in this infographic.

Each value represents the monthly minimum wage a full-time worker would receive in each country. Picodi states that these figures are net of taxes and have been converted to USD.

CountryIncrease compared to Jan 2022Minimum wage as of Jan 2023 (full-time, USD)
Cyprus104.5%$854
Argentina100.0%$336
Turkey32.5%$457
Moldova27.1%$180
Latvia25.8%$555
Malaysia24.6%$289
Pakistan24.5%$111
Romania21.9%$393
Germany21.2%$1,594
Belarus18.8%$189
Lithuania18.5%$646
North Macedonia17.4%$298
Mexico17.1%$315
Chile16.9%$369
Russia16.6%$224
Kazakhstan16.4%$131
Colombia16.0%$249
Hungary15.3%$383
Netherlands14.6%$1,895
Poland14.3%$584
Belgium14.3%$1,509
Serbia14.2%$347
Estonia14.2%$704
Azerbaijan13.3%$186
Albania12.9%$265
Slovenia12.6%$896
US12.0%$1,550
Croatia11.9%$571
Uzbekistan11.4%$72
Paraguay11.4%$323
Armenia10.3%$138
Peru10.0%$233
Bosnia and Herzegovina9.9%$324
Bulgaria9.3%$315
Luxembourg9.2%$2,140
Philippines9.0%$141
Uruguay8.9%$424
Brazil8.5%$232
India8.1%$95
Indonesia7.9%$173
Greece7.8%$626
Portugal7.3%$690
UK7.2%$1,705
Slovakia6.9%$572
South Africa6.6%$226
France6.6%$1,380
Czechia6.0%$643
Vietnam5.7%$162
Ecuador5.6%$407
New Zealand5.4%$1,866
Ireland5.1%$1,753
Canada5.0%$1,545
Thailand4.8%$195
Australia4.7%$2,022
South Korea4.6%$1,333
Taiwan4.0%$800
Bolivia3.9%$284
Guatemala3.6%$383
Malta3.1%$788
Ukraine0.0%$146
Israel0.0%$1,389
Puerto Rico0.0%$1,328
Hong Kong0.0%$959
Saudi Arabia0.0%$958
Spain0.0%$925
Montenegro0.0%$459
Nigeria0.0%$68

Generally speaking, developed countries have a higher cost of living, and thus require a higher minimum wage.

Two outliers in this dataset are Argentina and Turkey, which have increased their minimum wages by 100% or more from January 2022 levels.

Turkey is suffering from an ongoing currency crisis, with the lira losing over 40% of its value in 2021. Prices of basic goods have increased considerably as the Turkish lira continues to plummet. In fact, a 2022 survey found that 70% of people in Turkey were struggling to pay for food.

Argentina, South America’s second-biggest economy, is also suffering from very high inflation. In response, the country announced three minimum wage increases throughout 2022.

Minimum Wage in the U.S.

Within the U.S., minimum wage varies significantly by state. We’ve visualized each state’s basic minimum rate (hourly) using January 2023 data from the U.S. Department of Labor.

US minimum wage

2023-03-17 Update: This map was updated to fix several incorrect values. We apologize for any confusion this may have caused.

America’s federal minimum wage has remained unchanged since 2009 at $7.25 per hour.

Each state is allowed to set their own minimum wage, as long as it’s higher than the federal minimum. In states that do not set their own minimum, the federal minimum applies.

If we assume someone works 40 hours a week, the federal minimum wage of $7.25 translates to an annual figure of just $15,080 before taxes. California’s minimum wage of $15.50 translates to $32,240 before taxes.

For further perspective, check out our 2022 infographic on the salary needed to buy a home across 50 U.S. cities.

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