REM-Qs

Which one of the following situations is NOT possible for a measurement instrument?

The measurement instrument is not reliable but it is valid

Which of the following is a consequence of a measurement scale having an "absolute zero"?

You can form meaningful ratios between measurements

If a measurement instrument is truly measuring the characteristic that we think it is measuring, we say that the instrument shows:

construct validity

If you are told that an electronic device that measures the wavelength of light is a reliable measurement instrument, it means that:

it gives you the same measurement every time you measure the wavelength of a particular light.

A community college uses a set of code numbers to indicate the number of credits that each student has completed. Students who have at least 50 credits are coded as "4". Students who have from 24 to 49 credits are coded as "3". Students who have from 15 to 23 credits are coded as "2". Students who have less than 15 credits are coded as "1". This system of coding students in terms of the number of credits they have completed represents what type of measurement scale?

nominal