Over the years, I learned that there is a simple test to see whether you are an optimist or a pessimist.

The test “shows" you a cup of water. And the “subject" determines whether it is half full or half empty.

If you say it is half full, then you are supposingly an optimist, and if you say it is half empty, then you are supposingly a pessimist.

I cannot say whether this test is accurate or not,however, I feel shouldn’t the question be “does the subject want water, does he/she like water?" before you can take the test.

Supposingly, if the subject were to “hate" water (or not in need of water at that time) saying that glass is half empty doesn’t prove the person to be a pessimist, because they simply aren’t pessimistic about only having half a cup left.