Very much so, it will usually be the subject you feel least confidant about. The cure is to become an expert in that category and then the anxiety will go away! :)
You can take an anxiety test in doctor clinics. Clinics are usually found around one area so you might have to travel to some clinics. One clinic I suggest is called CalmClinic.
I never suffered from Math Anxiety, or Test Anxiety, although I have observed people who have. I knew of one student who had Test Anxiety so badly, his math professor in his Junior College, when it came test time, would tell the student, "Here. Fill this out." That worked for that student; he would fill out the paper and hand it in, and do well on it. If he was told it was a test, he'd freeze and fail.
There are many good books and sites available on anxiety disorders. One good book on the subject of anxiety disorders is The Anxiety Book by Jonathon Davidson.
The test is only good for one person only and only good for one time use
Your high school honors class for a specific subject covered by the SAT will be equivalent to he material covered in its corresponding subject test. Make sure to buy the SAT subject test preparation book to study and review from.
a fair test
If you test only one variable then you know that the difference in the experimental and control setup is that one independent variable. If you test more than one you will not know which one made the difference.
With two test tubes you have a spare in case one of the breaks.
If you test only one variable then you know that the difference in the experimental and control setup is that one independent variable. If you test more than one you will not know which one made the difference.
It usually is because IQ questions don't exactly test on how well you do on everything, they only see how you do in one subject. Now the point of having IQ questions is to see how you do on an average of a lot of subjects.
Whether you have to retake the entire test or just the failed subject depends on the specific testing organization or educational institution's policies. In many cases, students are allowed to retake only the failed subject while passing scores in other areas remain valid. It's best to check the guidelines provided by the testing body for the most accurate information.
A matched test is appropriate only if the two variables are measures taken for the same subject.