How tests and wrong answers help us remember what we learn
Tests can have a powerful effect on what a student remembers.
What happens if you get an answer wrong? Common sense says if you practice making errors, you learn to make errors. But common sense also says we learn most from making mistakes.
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In genetic ancestry testing, even identical twins who have virtually the same DNA may or may not get the same results.
Different DNA companies can show different results, in the case of twins...
Consumer genetic testing is expanding as more than 26 million people have taken this kind of test, according to the MIT Technology Review.
DNA tests are still considered estimates, due to imperfect data.
When a person wanting to give the test provides the DNA sample through the saliva, the company checks for variance in the saliva, as 99.9 percent of the DNA is the same in humans.
While we may not like to admit this, we all are making a lot of bad decisions, be it our personal lives, careers or in our jobs. Here is what research says about making good decisions:
If there is too much information, we tend to make the wrong decision, and even if our decision is well-researched and considered right, we end up dissatisfied.
The right information, even if less, provides clarity to make the right decision.
A gut feeling, or an instinct, is often the right path, and points towards the right decision.
Ultra-rational, logical and unemotional decision-making does not guarantee that the decision taken will be the right one.