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	334809	2378	-	2436	=	-58	*	(55	/	201)	=	-15.87064672
4	334810	2398	-	2485	=	-87	*	(47	/	201)	=	-20.34328352
5	334813	2444	-	2528	=	-84	*	(52	/	201)	=	-21.73134323
6	334814	2446	-	2552	=	-106	*	(47	/	201)	=	-24.78606957
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Wolters Elementary											-83

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	9990	2374	-	2436	=	-62	*	(50	/	187)	=	-16.5775401
4	9991	2430	-	2485	=	-55	*	(48	/	187)	=	-14.11764701
5	9993	2456	-	2528	=	-72	*	(47	/	187)	=	-18.09625666
6	9995	2444	-	2552	=	-108	*	(42	/	187)	=	-24.25668444
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Wolters Elementary											-73

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	10317	2389	-	2436	=	-47	*	(62	/	224)	=	-13.00892856
4	10320	2417	-	2485	=	-68	*	(64	/	224)	=	-19.42857138
5	10321	2475	-	2528	=	-53	*	(50	/	224)	=	-11.83035711
6	10323	2453	-	2552	=	-99	*	(48	/	224)	=	-21.21428569
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Wolters Elementary											-65

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	10336	2394	-	2436	=	-42	*	(55	/	200)	=	-11.55
4	10337	2432	-	2485	=	-53	*	(54	/	200)	=	-14.31
5	10340	2473	-	2528	=	-55	*	(47	/	200)	=	-12.925
6	10341	2516	-	2552	=	-36	*	(44	/	200)	=	-7.92
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Wolters Elementary											-47

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	10416	2420	-	2436	=	-16	*	(69	/	233)	=	-4.73819742
4	10417	2427	-	2485	=	-58	*	(55	/	233)	=	-13.69098712
5	10418	2482	-	2528	=	-46	*	(58	/	233)	=	-11.45064375
6	10419	2478	-	2552	=	-74	*	(51	/	233)	=	-16.19742488
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Wolters Elementary											-46

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-83	-73	-65	-47	-46	-314.0	-62.8

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -14.8

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -110.8

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	94%	95%	94%	94%	92%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file