2015

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	1435639	2415	-	2436	=	-21	*	(83	/	259)	=	-6.72972972
4	1435642	2473	-	2485	=	-12	*	(96	/	259)	=	-4.44787644
5	1435643	2494	-	2528	=	-34	*	(80	/	259)	=	-10.50193047
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Palisades Elementary											-22

2016

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	45201	2424	-	2436	=	-12	*	(91	/	274)	=	-3.98540146
4	45203	2470	-	2485	=	-15	*	(84	/	274)	=	-4.59854015
5	45205	2517	-	2528	=	-11	*	(99	/	274)	=	-3.97445255
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Palisades Elementary											-13

2017

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	46410	2428	-	2436	=	-8	*	(76	/	236)	=	-2.57627118
4	46412	2474	-	2485	=	-11	*	(77	/	236)	=	-3.58898305
5	46415	2478	-	2528	=	-50	*	(83	/	236)	=	-17.58474575
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Palisades Elementary											-24

2018

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	46421	2414	-	2436	=	-22	*	(84	/	228)	=	-8.10526314
4	46423	2483	-	2485	=	-2	*	(63	/	228)	=	-0.55263158
5	46424	2507	-	2528	=	-21	*	(81	/	228)	=	-7.4605263
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Palisades Elementary											-16

2019

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	46603	2413	-	2436	=	-23	*	(63	/	209)	=	-6.93301434
4	46604	2493	-	2485	=	8	*	(81	/	209)	=	3.10047846
5	46605	2515	-	2528	=	-13	*	(65	/	209)	=	-4.04306219
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Palisades Elementary											-8

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-22	-13	-24	-16	-8	-83.0	-16.6

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: 1.4

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -34.6

For the lines, you have the data necessary to plot the chart.

Very last step

The percent of students getting a Free or Reduced Price Meal comes from the following sources:

	2015	2016	2017	2018	2019
Percent	38%	35%	37%	44%	37%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file