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	2360244	2395	-	2436	=	-41	*	(40	/	118)	=	-13.89830505
4	2360247	2421	-	2485	=	-64	*	(40	/	118)	=	-21.6949152
5	2360248	2460	-	2528	=	-68	*	(38	/	118)	=	-21.89830506
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Bryant Elementary											-57

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	72114	2401	-	2436	=	-35	*	(33	/	99)	=	-11.66666666
4	72116	2480	-	2485	=	-5	*	(34	/	99)	=	-1.71717172
5	72117	2460	-	2528	=	-68	*	(32	/	99)	=	-21.97979796
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Bryant Elementary											-35

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	74087	2408	-	2436	=	-28	*	(34	/	94)	=	-10.12765956
4	74090	2435	-	2485	=	-50	*	(29	/	94)	=	-15.4255319
5	74091	2473	-	2528	=	-55	*	(31	/	94)	=	-18.13829787
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Bryant Elementary											-44

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	74261	2433	-	2436	=	-3	*	(35	/	91)	=	-1.15384615
4	74264	2409	-	2485	=	-76	*	(31	/	91)	=	-25.89010984
5	74265	2470	-	2528	=	-58	*	(25	/	91)	=	-15.93406589
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Bryant Elementary											-43

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	74785	2427	-	2436	=	-9	*	(29	/	94)	=	-2.77659574
4	74786	2447	-	2485	=	-38	*	(35	/	94)	=	-14.14893615
5	74787	2455	-	2528	=	-73	*	(30	/	94)	=	-23.29787233
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Bryant Elementary											-40

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-57	-35	-44	-43	-40	-219.0	-43.8

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -19.8

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -67.8

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	90%	78%	94%	78%	80%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file