Matilda is interested in number of books read by each of the third grade children in her school district during the academic year. She believes that there may be differences in the number of books read by classroom and by school and she thinks there is a positive relationship between number of books read and reading achievement as measured on the standardized assessment given at the end of the year.
-In Matilda's study the variable 'reading achievement' would be considered an) ___________ level variable.
A) nominal
B) ordinal
C) interval
D) ratio

Question

Quizplus · Accepted Answer

Ratio level variables have a true zero point and equal intervals between each value. Reading achievement, as measured on a standardized assessment, has a true zero point (no reading achievement) and equal intervals between each score (e.g., a score of 100 represents twice as much reading achievement as a score of 50).

Matilda Is Interested in Number of Books Read by Each