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	337387	2411	-	2436	=	-25	*	(59	/	205)	=	-7.19512195
4	337388	2452	-	2485	=	-33	*	(54	/	205)	=	-8.69268292
5	337391	2490	-	2528	=	-38	*	(50	/	205)	=	-9.26829268
6	337392	2555	-	2552	=	3	*	(42	/	205)	=	0.61463414
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Eaton Elementary											-25

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	10055	2406	-	2436	=	-30	*	(66	/	225)	=	-8.79999999
4	10057	2455	-	2485	=	-30	*	(54	/	225)	=	-7.2
5	10060	2489	-	2528	=	-39	*	(57	/	225)	=	-9.87999999
6	10061	2524	-	2552	=	-28	*	(48	/	225)	=	-5.97333332
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Eaton Elementary											-32

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	10383	2432	-	2436	=	-4	*	(42	/	211)	=	-0.79620853
4	10385	2430	-	2485	=	-55	*	(66	/	211)	=	-17.20379144
5	10388	2478	-	2528	=	-50	*	(50	/	211)	=	-11.8483412
6	10390	2549	-	2552	=	-3	*	(53	/	211)	=	-0.7535545
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Eaton Elementary											-31

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	10396	2417	-	2436	=	-19	*	(54	/	214)	=	-4.79439251
4	10397	2467	-	2485	=	-18	*	(48	/	214)	=	-4.03738317
5	10399	2468	-	2528	=	-60	*	(61	/	214)	=	-17.10280368
6	10401	2515	-	2552	=	-37	*	(51	/	214)	=	-8.81775701
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Eaton Elementary											-35

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	10476	2447	-	2436	=	11	*	(60	/	227)	=	2.90748898
4	10477	2470	-	2485	=	-15	*	(57	/	227)	=	-3.76651982
5	10478	2493	-	2528	=	-35	*	(52	/	227)	=	-8.01762112
6	10479	2486	-	2552	=	-66	*	(58	/	227)	=	-16.86343606
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Eaton Elementary											-26

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-25	-32	-31	-35	-26	-149.0	-29.8

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -17.8

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -41.8

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	56%	66%	68%	69%	66%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file