There is no maximum or "perfect" score on a MAP Growth test. A student's score on any MAP Growth test is a function of both the proportion of questions answered correctly and the difficulty of the questions asked. The valid range for scores is between 100 and 350, but that does not mean that student scores "go to 350" or that a student may ever even receive the highest RIT item available on a test. The assessment adapts between RIT difficulties to generate a valid inferenced score.
We recommend using RIT norm data in conjunction with the MAP reports and to think in terms of the skills found in the higher RIT ranges. For example, if it were your goal to help a student in 8th grade reach the top 95-99 percentile for their grade during winter testing in math, you would see that a student in 8th grade who is scoring a 260-273 is in the upper 5% of the achievement percentiles. Although these are by no means the maximum scores possible, it does give you an idea of the upper levels of RIT scores. See
Comparative data to inform instructional decisions for more information.
See also:
