# Building-Level Score and PVAAS Average Growth Index

This document describes how PVAAS transforms value-added measures into building-level scores.

The average growth index (AGI) represents growth in the building-level score. We convert the AGI to a 100-point scale for use in the building-level score.

### AGI

The AGI is a reliable measure of whether a school's students exceeded, met, or fell short of the growth standard for each tested subject. This value takes into account the amount of growth the students made, on average, as well as the amount of evidence for that measure. Specifically, the AGI is the growth measure divided by the standard error. A separate AGI is calculated for each Keystone content area.

The values displayed in PVAAS reports are rounded, but the values used to calculate AGIs are not. As a result, an AGI might not equal the result of dividing a growth measure by its standard error.

AGIs are color-coded based on the rules for value-added reports.

Growth Color IndicatorAverage Growth IndexInterpretation
Well Above

2.00 or higher

Significant evidence that the group of students exceeded the growth standard

Above

Between 1.00 and 2.00

Moderate evidence that the group of students exceeded the growth standard

Meets

Between -1.00 and 1.00

Evidence that the group of students met the growth standard

Below

Between -1.00 and -2.00

Moderate evidence that the group of students did not meet the growth standard

Well Below

-2.00 or lower

Significant evidence that the group of students did not meet the growth standard

### Building-Level Scale Score

Each AGI is converted to a 100-point scale following these rules.

If the AGI isThe Scale Score is

3.00 or greater

100

Less than 3.00 but greater than or equal to 1.00

10 x (AGI + 7), truncated to a whole number

Less than 1.00 but greater than or equal to -1.00

5 x (AGI + 15), truncated to a whole number

Less than -1.00 but greater than or equal to -3.0010 x (AGI + 8), truncated to a whole number
Less than -3.0050

The following table illustrates the relationship between the AGI, the growth color indicator, and the building-level scale score.

AGI Color IndicatorAGIScale Score Conversion FormulaScale Score
Dark Blue3.00 or higherScale Score = 100100
Dark Blue

Between 2.00 and 3.00

Scale Score = 10 x (AGI + 7), truncated to a whole number

Between 90 and 99

Light Blue

Between 1.00 and 2.00

Scale Score = 10 x (AGI + 7), truncated to a whole number

Between 80 and 89

Green

Between -1.00 and 1.00

Scale Score = 5 x (AGI + 15), truncated to a whole number

Between 70 and 79

Yellow

Between -1.00 and -2.00

Scale Score = 10 x (AGI + 8), truncated to a whole number

Between 60 and 69

RedBetween -3.00 and -2.00Scale Score = 10 x (AGI + 8), truncated to a whole numberBetween 50 and 59
Red

Less than -3.00

Scale Score = 50

50

When an AGI falls exactly on the boundary between two ranges, the scale score conversion formula for the higher range is used.