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	320357	2370	-	2436	=	-66	*	(86	/	347)	=	-16.35734866
4	320360	2416	-	2485	=	-69	*	(69	/	347)	=	-13.72046108
5	320361	2436	-	2528	=	-92	*	(102	/	347)	=	-27.04322759
6	320364	2485	-	2552	=	-67	*	(90	/	347)	=	-17.3775216
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Aynesworth Elementary											-74

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	9559	2377	-	2436	=	-59	*	(101	/	349)	=	-17.07449852
4	9561	2411	-	2485	=	-74	*	(83	/	349)	=	-17.59885383
5	9564	2425	-	2528	=	-103	*	(70	/	349)	=	-20.6590257
6	9566	2471	-	2552	=	-81	*	(95	/	349)	=	-22.04871054
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Aynesworth Elementary											-77

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	9888	2370	-	2436	=	-66	*	(81	/	345)	=	-15.49565213
4	9889	2426	-	2485	=	-59	*	(103	/	345)	=	-17.61449272
5	9891	2410	-	2528	=	-118	*	(87	/	345)	=	-29.75652173
6	9894	2466	-	2552	=	-86	*	(74	/	345)	=	-18.44637676
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Aynesworth Elementary											-81

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	9905	2390	-	2436	=	-46	*	(87	/	340)	=	-11.77058819
4	9908	2422	-	2485	=	-63	*	(79	/	340)	=	-14.63823528
5	9909	2432	-	2528	=	-96	*	(93	/	340)	=	-26.25882346
6	9912	2449	-	2552	=	-103	*	(81	/	340)	=	-24.53823528
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Aynesworth Elementary											-77

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	9986	2393	-	2436	=	-43	*	(105	/	366)	=	-12.33606554
4	9987	2448	-	2485	=	-37	*	(84	/	366)	=	-8.49180325
5	9988	2438	-	2528	=	-90	*	(81	/	366)	=	-19.91803275
6	9989	2465	-	2552	=	-87	*	(96	/	366)	=	-22.81967205
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Aynesworth Elementary											-64

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-74	-77	-81	-77	-64	-373.0	-74.6

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -56.6

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -92.6

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	95%	95%	96%	97%	95%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file