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	79645	2380	-	2436	=	-56	*	(71	/	368)	=	-10.80434779
4	79646	2449	-	2485	=	-36	*	(75	/	368)	=	-7.33695649
5	79649	2476	-	2528	=	-52	*	(69	/	368)	=	-9.75
6	79650	2465	-	2552	=	-87	*	(58	/	368)	=	-13.71195647
7	79653	2510	-	2567	=	-57	*	(53	/	368)	=	-8.20923912
8	79654	2535	-	2586	=	-51	*	(42	/	368)	=	-5.82065213
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Greenleaf Elementary											-56

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	2168	2400	-	2436	=	-36	*	(70	/	367)	=	-6.86648498
4	2169	2407	-	2485	=	-78	*	(73	/	367)	=	-15.51498632
5	2172	2468	-	2528	=	-60	*	(73	/	367)	=	-11.93460486
6	2173	2508	-	2552	=	-44	*	(55	/	367)	=	-6.59400544
7	2176	2528	-	2567	=	-39	*	(51	/	367)	=	-5.4196185
8	2178	2509	-	2586	=	-77	*	(45	/	367)	=	-9.44141683
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Greenleaf Elementary											-56

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	2227	2420	-	2436	=	-16	*	(78	/	374)	=	-3.33689838
4	2229	2420	-	2485	=	-65	*	(70	/	374)	=	-12.16577538
5	2232	2434	-	2528	=	-94	*	(68	/	374)	=	-17.09090901
6	2233	2504	-	2552	=	-48	*	(59	/	374)	=	-7.57219248
7	2235	2491	-	2567	=	-76	*	(52	/	374)	=	-10.56684491
8	2237	2593	-	2586	=	7	*	(47	/	374)	=	0.87967914
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Greenleaf Elementary											-50

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	2217	2383	-	2436	=	-53	*	(68	/	389)	=	-9.26478144
4	2219	2438	-	2485	=	-47	*	(82	/	389)	=	-9.90745501
5	2221	2425	-	2528	=	-103	*	(75	/	389)	=	-19.85861177
6	2223	2486	-	2552	=	-66	*	(53	/	389)	=	-8.99228788
7	2225	2507	-	2567	=	-60	*	(62	/	389)	=	-9.56298198
8	2227	2584	-	2586	=	-2	*	(49	/	389)	=	-0.25192802
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Greenleaf Elementary											-58

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	2230	2392	-	2436	=	-44	*	(73	/	392)	=	-8.19387752
4	2231	2432	-	2485	=	-53	*	(74	/	392)	=	-10.00510203
5	2232	2451	-	2528	=	-77	*	(78	/	392)	=	-15.32142851
6	2233	2442	-	2552	=	-110	*	(64	/	392)	=	-17.95918366
7	2234	2507	-	2567	=	-60	*	(45	/	392)	=	-6.88775508
8	2235	2509	-	2586	=	-77	*	(58	/	392)	=	-11.39285709
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Greenleaf Elementary											-70

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-56	-56	-50	-58	-70	-290.0	-58.0

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -37.0

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -79.0

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	91%	85%	90%	95%	94%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file