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  2. 105 True or False Questions—Fun Facts To Keep You ... - AOL

    www.aol.com/lifestyle/105-true-false-questions...

    Related: 100 TV Trivia Questions (With Answers) to Test Your Tube Knowledge. True or False Questions About Animals. 16. A cheetah is the fastest animal on the planet. Answer: False – they’re ...

  3. The Hardest Logic Puzzle Ever - Wikipedia

    en.wikipedia.org/wiki/The_Hardest_Logic_Puzzle_Ever

    Three gods A, B, and C are called, in no particular order, True, False, and Random. True always speaks truly, False always speaks falsely, but whether Random speaks truly or falsely is a completely random matter. Your task is to determine the identities of A, B, and C by asking three yes–no questions; each question must be put to exactly one god.

  4. Beck Hopelessness Scale - Wikipedia

    en.wikipedia.org/wiki/Beck_Hopelessness_Scale

    It is a true-false test is designed for adults, age 17–80. It measures the extent of the respondent's negative attitudes, or pessimism, about the future. It may be used as an indicator of suicidal risk in depressed people who have made suicide attempts. It is not designed for use as a measure of the hopelessness construct but has been used as ...

  5. False positives and false negatives - Wikipedia

    en.wikipedia.org/wiki/False_positives_and_false...

    Increasing the specificity of the test lowers the probability of type I errors, but may raise the probability of type II errors (false negatives that reject the alternative hypothesis when it is true). [a] Complementarily, the false negative rate (FNR) is the proportion of positives which yield negative test outcomes with the test, i.e., the ...

  6. What Really Causes a False Positive COVID-19 Test ... - AOL

    www.aol.com/lifestyle/false-positive-covid-19...

    In the most basic sense, there are four possible outcomes for a COVID-19 test, whether it’s molecular PCR or rapid antigen: true positive, true negative, false positive, and false negative ...

  7. Criteria of truth - Wikipedia

    en.wikipedia.org/wiki/Criteria_of_truth

    Time is an inadequate test for truth, since it is subject to similar flaws as custom and tradition (which are simply specific variations of the time factor). Many demonstrably false beliefs have endured for centuries and even millennia (e.g. vitalism). It is commonly rejected as a valid criterion.

  8. How common are false-positive COVID tests? Experts weigh in.

    www.aol.com/lifestyle/common-false-positive...

    The false-positive rate for a PCR test is close to zero, though. ... Ellume notes that "the percent of positive test results that are true positives (also known as Positive Predictive Value or PPV ...

  9. Three-valued logic - Wikipedia

    en.wikipedia.org/wiki/Three-valued_logic

    For example, because true OR true equals true, and true OR false also equals true, then true OR unknown equals true as well. In this example, because either bivalent state could be underlying the unknown state, and either state also yields the same result, true results in all three cases.