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	325989	2393	-	2436	=	-43	*	(67	/	253)	=	-11.38735176
4	325992	2453	-	2485	=	-32	*	(66	/	253)	=	-8.34782608
5	325993	2444	-	2528	=	-84	*	(60	/	253)	=	-19.9209486
6	325996	2434	-	2552	=	-118	*	(60	/	253)	=	-27.9841897
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Holland Elementary											-68

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	9724	2389	-	2436	=	-47	*	(69	/	266)	=	-12.19172931
4	9725	2449	-	2485	=	-36	*	(67	/	266)	=	-9.06766916
5	9728	2455	-	2528	=	-73	*	(61	/	266)	=	-16.74060148
6	9730	2456	-	2552	=	-96	*	(69	/	266)	=	-24.90225562
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Holland Elementary											-63

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	10051	2401	-	2436	=	-35	*	(55	/	226)	=	-8.51769909
4	10054	2445	-	2485	=	-40	*	(61	/	226)	=	-10.79646016
5	10055	2464	-	2528	=	-64	*	(59	/	226)	=	-16.70796454
6	10057	2445	-	2552	=	-107	*	(51	/	226)	=	-24.14601761
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Holland Elementary											-60

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	10069	2387	-	2436	=	-49	*	(56	/	227)	=	-12.08810572
4	10072	2437	-	2485	=	-48	*	(54	/	227)	=	-11.41850218
5	10073	2433	-	2528	=	-95	*	(59	/	227)	=	-24.69162993
6	10076	2482	-	2552	=	-70	*	(58	/	227)	=	-17.88546249
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Holland Elementary											-66

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	10150	2410	-	2436	=	-26	*	(60	/	217)	=	-7.18894007
4	10151	2420	-	2485	=	-65	*	(54	/	217)	=	-16.17511519
5	10152	2457	-	2528	=	-71	*	(45	/	217)	=	-14.72350224
6	10153	2425	-	2552	=	-127	*	(58	/	217)	=	-33.94470034
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Holland Elementary											-72

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-68	-63	-60	-66	-72	-329.0	-65.8

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -53.8

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -77.8

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	91%	91%	91%	92%	92%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file