LSAT, MCAT, so on
A multiple choice test is usually not valid to determine learning of manipulative skills. Instead, the student should be able to manipulate the items to prove mastery.
A paired samples t-test is an example of parametric (not nonparametric) tests.
The Fisher F-test for Analysis of Variance (ANOVA).
N>=30 N at-least greater then 30
an immunoassay test for pregnancy
A test may be reliable but not valid. A test may not be valid but not reliable. For example, if I use a yard stick that is mislabeled to measure the distance from tee to hole in golf on different length holes, the results will be neither reliable nor valid. If you use the same stick to measure football fields that are the same length the result will reliable (repeatable, consistent) but not valid (wrong numbers of yards). There is no test that is unreliable (repeatable, consistent) and valid (measures what we are looking for).
In my view reliable test is always valid.
There is no such valid test, so I would definitely question it.
No
Yes, it would be a valid test.
A bathroom scale that consistently shows your weight as 10 pounds less than your actual weight, but always produces the same result when you step on it multiple times, can be considered reliable (consistent) but not valid (accurate).
No
Reliable indicates that each time the experiment is conducted, the same results are obtained (accuracy). Valid indicates the experiment (or test) has controlled variables and used an appropriate method/model.
No, a single colon in itself is not a valid example of CSS syntax.
Yes sure. It is valid. It will shows the how fast you are thinking.
Urine for a drug test should be between 90-100 degrees Fahrenheit to be considered valid.
Urine temperature for a drug test to be considered valid should be around 90-100 degrees Fahrenheit.