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	2133505	2419	-	2436	=	-17	*	(96	/	364)	=	-4.48351647
4	2133508	2427	-	2485	=	-58	*	(99	/	364)	=	-15.77472522
5	2133509	2443	-	2528	=	-85	*	(76	/	364)	=	-17.74725268
6	2133512	2487	-	2552	=	-65	*	(93	/	364)	=	-16.60714283
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rice (Lilian J.) Elementary											-55

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	65505	2459	-	2436	=	23	*	(92	/	372)	=	5.68817202
4	65506	2440	-	2485	=	-45	*	(92	/	372)	=	-11.12903222
5	65508	2470	-	2528	=	-58	*	(106	/	372)	=	-16.52688169
6	65511	2497	-	2552	=	-55	*	(82	/	372)	=	-12.12365589
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rice (Lilian J.) Elementary											-34

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	67321	2438	-	2436	=	2	*	(92	/	368)	=	0.5
4	67322	2444	-	2485	=	-41	*	(89	/	368)	=	-9.91576087
5	67324	2465	-	2528	=	-63	*	(94	/	368)	=	-16.09239127
6	67327	2504	-	2552	=	-48	*	(93	/	368)	=	-12.13043477
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rice (Lilian J.) Elementary											-38

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	67426	2409	-	2436	=	-27	*	(68	/	323)	=	-5.68421051
4	67428	2460	-	2485	=	-25	*	(84	/	323)	=	-6.50154798
5	67430	2501	-	2528	=	-27	*	(78	/	323)	=	-6.52012384
6	67432	2508	-	2552	=	-44	*	(93	/	323)	=	-12.66873062
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rice (Lilian J.) Elementary											-31

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	67942	2421	-	2436	=	-15	*	(98	/	353)	=	-4.16430594
4	67943	2481	-	2485	=	-4	*	(72	/	353)	=	-0.81586402
5	67944	2480	-	2528	=	-48	*	(91	/	353)	=	-12.37393766
6	67945	2516	-	2552	=	-36	*	(92	/	353)	=	-9.38243624
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rice (Lilian J.) Elementary											-27

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-55	-34	-38	-31	-27	-185.0	-37.0

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -7.0

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -67.0

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	84%	82%	83%	82%	88%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file