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	1538645	2375	-	2436	=	-61	*	(115	/	355)	=	-19.76056332
4	1538648	2429	-	2485	=	-56	*	(117	/	355)	=	-18.45633798
5	1538649	2444	-	2528	=	-84	*	(123	/	355)	=	-29.10422533
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Theodore Roosevelt Elementary											-67

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	48203	2386	-	2436	=	-50	*	(95	/	303)	=	-15.67656765
4	48204	2421	-	2485	=	-64	*	(104	/	303)	=	-21.96699667
5	48207	2475	-	2528	=	-53	*	(104	/	303)	=	-18.19141912
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Theodore Roosevelt 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	49531	2369	-	2436	=	-67	*	(96	/	310)	=	-20.74838707
4	49532	2414	-	2485	=	-71	*	(110	/	310)	=	-25.19354834
5	49535	2442	-	2528	=	-86	*	(104	/	310)	=	-28.85161282
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Theodore Roosevelt Elementary											-75

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	49544	2387	-	2436	=	-49	*	(86	/	283)	=	-14.89045933
4	49547	2425	-	2485	=	-60	*	(94	/	283)	=	-19.92932862
5	49548	2448	-	2528	=	-80	*	(103	/	283)	=	-29.11660776
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Theodore Roosevelt Elementary											-64

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	49743	2400	-	2436	=	-36	*	(82	/	257)	=	-11.48638129
4	49744	2442	-	2485	=	-43	*	(81	/	257)	=	-13.55252917
5	49745	2458	-	2528	=	-70	*	(94	/	257)	=	-25.60311278
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Theodore Roosevelt Elementary											-51

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-67	-56	-75	-64	-51	-313.0	-62.6

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -35.6

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -89.6

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	89%	96%	93%	93%	94%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file