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2014 Accountability Data - Weston

District Information
District:Weston (03300000)
Region:Greater Boston
Title I Status:Yes
Accountability and Assistance Level:Level 2
Summary > Students w/ disabilities
Progress and Performance Index (PPI) Subgroup Data
View Detailed 2014 Data for Each Indicator Points Awarded
2011 2012 2013 2014
English Language ArtsNarrowing proficiency gaps (Composite Performance Index)75757575
Growth (Student Growth Percentiles)50757550
Extra credit for decreasing % Warning/Failing (10% or more)025250
Extra credit for increasing % Advanced (10% or more)2525250
MathematicsNarrowing proficiency gaps (Composite Performance Index)0757575
Growth (Student Growth Percentiles)50505050
Extra credit for decreasing % Warning/Failing (10% or more)02500
Extra credit for increasing % Advanced (10% or more)025025
ScienceNarrowing proficiency gaps (Composite Performance Index)25100750
Extra credit for decreasing % Warning/Failing (10% or more)25000
Extra credit for increasing % Advanced (10% or more)2525025
High SchoolAnnual dropout rate075100100
Cohort graduation rate75757575
Points awarded for narrowing proficiency gaps, growth, and high school indicators275525525425
Points awarded for extra credit751255050
Total points awarded350650575475
Number of proficiency gap narrowing, growth, and high school indicators7777
Annual PPI = (Total points / Number of indicators)50938268
Cumulative PPI = (2011*1 + 2012*2 + 2013*3 + 2014*4) / 10Met Target75
Assessment Participation 2011 2012 2013 2014
English Language Arts99%99%99%97%

How Annual and Cumulative PPIs are Calculated
The annual PPI is a measure of the improvement that a group makes toward its own targets over a two-year period on up to seven different indicators. Groups are eligible for an annual PPI if a sufficient number of students were assessed (20 for schools, 30 for subgroups) in English language arts and mathematics in the most recent year and one of the two prior years. A group is awarded 0, 25, 50, 75, or 100 points based on the amount of improvement it makes from one year to the next:
100Above Target25No ChangeA group can earn extra credit for reducing the percentage of students scoring Warning/Failing and/or by increasing the percentage of students scoring Advanced by 10% or more on ELA, mathematics, or science MCAS tests. An additional 25 points for meeting each of these goals is added to the total number of points awarded.
75On Target0Declined
50Improved Below Target-Insufficient Data
The annual PPI is calculated by dividing the total number of points awarded by the number of indicators (up to seven). The cumulative PPI is the average of a group's annual PPIs over the most recent four year period, weighting later years the most (1-2-3-4). A group is assigned a cumulative PPI if it has three annual PPIs. While a group's annual PPI can exceed 100 points, the cumulative PPI is always reported on a 100-point scale. For a group to be considered to be making progress toward narrowing proficiency gaps, its cumulative PPI must be 75 or higher.

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