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	2278125	2403	-	2436	=	-33	*	(66	/	210)	=	-10.37142856
4	2278126	2410	-	2485	=	-75	*	(73	/	210)	=	-26.07142853
5	2278129	2465	-	2528	=	-63	*	(71	/	210)	=	-21.29999999
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Kimbrough Elementary											-58

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	69840	2401	-	2436	=	-35	*	(63	/	196)	=	-11.24999999
4	69841	2412	-	2485	=	-73	*	(67	/	196)	=	-24.95408158
5	69843	2443	-	2528	=	-85	*	(66	/	196)	=	-28.62244891
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Kimbrough Elementary											-65

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	71675	2440	-	2436	=	4	*	(59	/	178)	=	1.3258427
4	71676	2410	-	2485	=	-75	*	(55	/	178)	=	-23.1741573
5	71678	2454	-	2528	=	-74	*	(64	/	178)	=	-26.60674151
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Kimbrough Elementary											-48

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	71819	2404	-	2436	=	-32	*	(58	/	171)	=	-10.85380115
4	71822	2449	-	2485	=	-36	*	(59	/	171)	=	-12.4210526
5	71823	2442	-	2528	=	-86	*	(54	/	171)	=	-27.15789468
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Kimbrough Elementary											-50

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	72305	2408	-	2436	=	-28	*	(62	/	183)	=	-9.48633879
4	72306	2440	-	2485	=	-45	*	(60	/	183)	=	-14.75409834
5	72307	2467	-	2528	=	-61	*	(61	/	183)	=	-20.33333331
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Kimbrough Elementary											-45

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-58	-65	-48	-50	-45	-266.0	-53.2

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -29.2

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -77.2

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	96%	98%	99%	99%	99%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file