Which of the following is possible?
A) A measure is neither reliable nor valid.
B) A measure is both valid and reliable.
C) A measure is reliable but not very valid.
D) Only a and b are possible.
E) All of the above are possible.

Question

Quizplus · Accepted Answer

All of the options are possible. A measure can be neither reliable nor valid, it can be both valid and reliable, or it can be reliable but not very valid. This is because reliability and validity are separate concepts that need to be assessed and measured independently. A measure can be reliable but not very valid if it consistently measures the same thing but not what it is intended to measure. Similarly, a measure can be valid but not reliable if it measures what it is intended to measure but not consistently. Therefore, all options are possible.

Which of the Following Is Possible