Growth as a Measure

Growth is defined as the change in a student's score and improvement in achievement over time. NWEA assessments provide various ways of reporting a student's improvement in achievement over time.

• All growth projection Targets and references to Typical Growth shown on reports are the Average Growth exhibited by the students in the same grade who started at the same RIT level in the sample set of the NWEA RIT Scale Norms study.
• RIT Point Growth values are the number of RIT points gained by a student.
• The NWEA Growth Index represents the number of RIT points by which the students exceeded the average growth (plus values), fell short of the average growth (minus values), or equaled the average growth (0), as determined by the RIT point growth norms.
• Percent with average growth refers to the percentage of students in the reporting unit that met or exceeded their individual growth target of students in the same grade who started at the same RIT level (growth index value of greater than or equal to zero).
• Percent of average growth met refers to the total student growth divided by the total of the RIT growth targets expressed as a percentage. Classes in which 50% or more students have positive growth indices, show above average growth in relation to the norm group.

The Achievement Status & Growth Calculator is an aid to help you establish and manage growth goals with your student or class. This calculator allows you to measure achievement as well as to predict and evaluate growth. It is an interactive spreadsheet that allows you to enter a student's subject, beginning grade, and RIT score with a number of instructional weeks to measure or predict growth over the specified instructional time period.

To access the Achievement Status & Growth Calculator log in to the NWEA Reports site and click on NWEA Norms Study Resources. Log in to the NWEA Reports site now.