Which statement accurately describes an instrument's reliability?
a. the lower an instrument's reliability, the lower the amount of error in obtained scores.
b. the lower an instrument's reliability, the higher the amount of error in obtained scores.
c. the higher an instrument's reliability, the lower the amount of error in obtained scores.
d. the higher an instrument's reliability, the higher the amount of error in obtained scores.

C

Explanation:

Instrument reliability:

It's defined as to measure the instrument for what it is supposed to make. For example, the thermometer is a good example of instrument reliability as its measures for what it is to be made. It is more reliable but we look at personality tests these are less reliable.  

There is a different type of instrument reliability as mentioned below.

the correct answer on edgen is:

(c.) prevent the spread of communism.

i just took the test.