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	333161	2391	-	2436	=	-45	*	(97	/	315)	=	-13.85714282
4	333162	2409	-	2485	=	-76	*	(84	/	315)	=	-20.26666662
5	333165	2393	-	2528	=	-135	*	(80	/	315)	=	-34.28571416
6	333166	2437	-	2552	=	-115	*	(54	/	315)	=	-19.71428567
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Vinland Elementary											-88

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	9939	2379	-	2436	=	-57	*	(88	/	326)	=	-15.38650305
4	9942	2404	-	2485	=	-81	*	(84	/	326)	=	-20.87116559
5	9944	2423	-	2528	=	-105	*	(73	/	326)	=	-23.5122699
6	9945	2423	-	2552	=	-129	*	(81	/	326)	=	-32.05214715
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Vinland Elementary											-92

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	10268	2397	-	2436	=	-39	*	(84	/	333)	=	-9.83783783
4	10269	2407	-	2485	=	-78	*	(91	/	333)	=	-21.31531529
5	10271	2435	-	2528	=	-93	*	(81	/	333)	=	-22.6216216
6	10273	2487	-	2552	=	-65	*	(77	/	333)	=	-15.03003002
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Vinland Elementary											-69

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	10285	2390	-	2436	=	-46	*	(82	/	334)	=	-11.29341317
4	10287	2400	-	2485	=	-85	*	(88	/	334)	=	-22.39520951
5	10289	2432	-	2528	=	-96	*	(84	/	334)	=	-24.14371248
6	10292	2455	-	2552	=	-97	*	(80	/	334)	=	-23.23353293
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Vinland Elementary											-81

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	10366	2403	-	2436	=	-33	*	(75	/	307)	=	-8.06188924
4	10367	2423	-	2485	=	-62	*	(74	/	307)	=	-14.94462539
5	10368	2442	-	2528	=	-86	*	(79	/	307)	=	-22.13029314
6	10369	2457	-	2552	=	-95	*	(79	/	307)	=	-24.44625405
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Vinland Elementary											-70

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-88	-92	-69	-81	-70	-400.0	-80.0

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -50.0

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -110.0

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	90%	89%	90%	91%	90%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file