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	343739	2394	-	2436	=	-42	*	(88	/	561)	=	-6.58823529
4	343740	2419	-	2485	=	-66	*	(89	/	561)	=	-10.47058822
5	343743	2459	-	2528	=	-69	*	(94	/	561)	=	-11.56149731
6	343744	2491	-	2552	=	-61	*	(78	/	561)	=	-8.48128341
7	343747	2487	-	2567	=	-80	*	(107	/	561)	=	-15.25846696
8	343748	2484	-	2586	=	-102	*	(105	/	561)	=	-19.09090905
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Hamilton Elementary											-71

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	10244	2398	-	2436	=	-38	*	(71	/	576)	=	-4.68402774
4	10246	2414	-	2485	=	-71	*	(86	/	576)	=	-10.60069441
5	10247	2451	-	2528	=	-77	*	(86	/	576)	=	-11.49652774
6	10249	2479	-	2552	=	-73	*	(84	/	576)	=	-10.64583331
7	10252	2452	-	2567	=	-115	*	(132	/	576)	=	-26.35416659
8	10254	2488	-	2586	=	-98	*	(117	/	576)	=	-19.90625
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Hamilton Elementary											-84

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	10575	2426	-	2436	=	-10	*	(67	/	561)	=	-1.1942959
4	10578	2423	-	2485	=	-62	*	(74	/	561)	=	-8.1782531
5	10580	2432	-	2528	=	-96	*	(83	/	561)	=	-14.20320854
6	10581	2472	-	2552	=	-80	*	(80	/	561)	=	-11.4081996
7	10583	2466	-	2567	=	-101	*	(146	/	561)	=	-26.28520495
8	10586	2442	-	2586	=	-144	*	(111	/	561)	=	-28.49197853
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Hamilton Elementary											-90

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	10590	2404	-	2436	=	-32	*	(88	/	596)	=	-4.72483219
4	10591	2423	-	2485	=	-62	*	(77	/	596)	=	-8.01006706
5	10594	2429	-	2528	=	-99	*	(70	/	596)	=	-11.62751674
6	10595	2453	-	2552	=	-99	*	(86	/	596)	=	-14.2852349
7	10598	2455	-	2567	=	-112	*	(124	/	596)	=	-23.30201339
8	10599	2479	-	2586	=	-107	*	(151	/	596)	=	-27.10906033
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Hamilton Elementary											-89

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	10668	2421	-	2436	=	-15	*	(89	/	617)	=	-2.1636953
4	10669	2434	-	2485	=	-51	*	(91	/	617)	=	-7.52188004
5	10670	2465	-	2528	=	-63	*	(79	/	617)	=	-8.06645051
6	10671	2465	-	2552	=	-87	*	(73	/	617)	=	-10.29335489
7	10672	2437	-	2567	=	-130	*	(162	/	617)	=	-34.13290101
8	10673	2463	-	2586	=	-123	*	(123	/	617)	=	-24.52025922
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Hamilton Elementary											-87

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-71	-84	-90	-89	-87	-421.0	-84.2

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -63.2

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -105.2

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	88%	90%	91%	92%	91%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file