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	321903	2399	-	2436	=	-37	*	(111	/	448)	=	-9.16741071
4	321906	2396	-	2485	=	-89	*	(98	/	448)	=	-19.46875
5	321907	2423	-	2528	=	-105	*	(124	/	448)	=	-29.06249997
6	321910	2441	-	2552	=	-111	*	(115	/	448)	=	-28.49330351
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Burroughs Elementary											-86

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	9603	2394	-	2436	=	-42	*	(126	/	444)	=	-11.91891889
4	9605	2424	-	2485	=	-61	*	(102	/	444)	=	-14.01351347
5	9607	2401	-	2528	=	-127	*	(93	/	444)	=	-26.60135129
6	9610	2428	-	2552	=	-124	*	(123	/	444)	=	-34.35135135
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Burroughs Elementary											-87

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	9932	2426	-	2436	=	-10	*	(112	/	427)	=	-2.62295081
4	9934	2438	-	2485	=	-47	*	(118	/	427)	=	-12.98829039
5	9935	2449	-	2528	=	-79	*	(102	/	427)	=	-18.87119436
6	9938	2448	-	2552	=	-104	*	(95	/	427)	=	-23.13817324
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Burroughs Elementary											-58

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	9949	2418	-	2436	=	-18	*	(106	/	442)	=	-4.31674207
4	9951	2433	-	2485	=	-52	*	(117	/	442)	=	-13.76470586
5	9953	2436	-	2528	=	-92	*	(117	/	442)	=	-24.35294114
6	9955	2477	-	2552	=	-75	*	(102	/	442)	=	-17.30769225
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Burroughs Elementary											-60

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	10030	2409	-	2436	=	-27	*	(118	/	416)	=	-7.65865384
4	10031	2464	-	2485	=	-21	*	(109	/	416)	=	-5.50240383
5	10032	2456	-	2528	=	-72	*	(84	/	416)	=	-14.53846147
6	10033	2501	-	2552	=	-51	*	(105	/	416)	=	-12.87259615
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Burroughs Elementary											-41

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-86	-87	-58	-60	-41	-332.0	-66.4

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -9.4

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -123.4

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	97%	97%	97%	97%	97%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file