No it's not
When a test measures the same value over time, it is called reliability. Specifically, this can refer to test-retest reliability, which assesses the consistency of results when the same test is administered to the same subjects under similar conditions at different points in time. High reliability indicates that the test produces stable and consistent results across repeated administrations.
they never meet again at the same time
When I sit to take a math test I usually just take my time. Write out every piece of work you do even if it is done in your head, and use your calculator whenever you can. Also try and check your answers as many times as you can to make sure you didn't make "stupid mistakes."
87.92 Note: This question is one of at least five different "rounding" problems posted by the same person at the same time on the same day during the same log-in session. Here's a wild idea: If you spent the same amount of time reviewing the rules of rounding that you spent typing all those questions into WikiAnswers, you could not only have the answers to these five questions, but on top of that, you'd also know how to round numbers, and you wouldn't have to ask other people for the answer every time you need a number rounded. How cool is that!
Number of trials is how many times you test your hypothesis. When you are doing trials the end result may come out differently every time.
there are diffrent answers every time
We can't give the answers for several reasons. First, you didn't give the book. Second the test doesn't stay the same each time. Three each school district buys access to AR and only the administration can know the answers. Better get to reading.
All of the SAT questions are different... each time the test is taken... even the tests students have is not the same in the sam room on the same day. Plus, telling anyone, or finding out the answers to the SAT is completely illegal and will cause in the erasing of your scores... as well as the person who told you the answers...
If you have a test on Hogwarts flying, then it is a good idea to read any material associated with the test. No one can give the answers ahead of time, or that would be considered cheating.
study
There is a different answer every time.
No, you only need to insert NuvaRing on the same day of the week every time, not the same time of day.
The answers to the questions in the Time Warner aptitude assessment test for a Customer Service's Rep. are not available online. Some of the questions are time based where you have two minutes to answer each one.
Either study or cheat
It is a different one every time.
there in different order every time
I believe they do, my cat consistently wakes me up at the same time every morning to be fed. I'm not sure how you would test such a theory though...