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	1991489	2384	-	2436	=	-52	*	(88	/	255)	=	-17.94509803
4	1991492	2452	-	2485	=	-33	*	(79	/	255)	=	-10.22352939
5	1991493	2458	-	2528	=	-70	*	(88	/	255)	=	-24.15686273
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Shadow Hills Elementary											-52

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	61253	2398	-	2436	=	-38	*	(83	/	247)	=	-12.76923074
4	61255	2449	-	2485	=	-36	*	(90	/	247)	=	-13.11740888
5	61257	2466	-	2528	=	-62	*	(74	/	247)	=	-18.57489874
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Shadow Hills Elementary											-44

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	63031	2422	-	2436	=	-14	*	(72	/	247)	=	-4.08097165
4	63033	2442	-	2485	=	-43	*	(83	/	247)	=	-14.44939268
5	63035	2458	-	2528	=	-70	*	(92	/	247)	=	-26.07287445
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Shadow Hills Elementary											-45

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	63112	2432	-	2436	=	-4	*	(76	/	216)	=	-1.4074074
4	63114	2460	-	2485	=	-25	*	(62	/	216)	=	-7.17592593
5	63116	2481	-	2528	=	-47	*	(78	/	216)	=	-16.97222222
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Shadow Hills Elementary											-26

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	63383	2421	-	2436	=	-15	*	(68	/	211)	=	-4.83412322
4	63384	2466	-	2485	=	-19	*	(82	/	211)	=	-7.38388625
5	63385	2484	-	2528	=	-44	*	(61	/	211)	=	-12.72037914
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Shadow Hills Elementary											-25

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-52	-44	-45	-26	-25	-192.0	-38.4

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -2.4

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -74.4

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	85%	87%	86%	84%	85%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file