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	332497	2386	-	2436	=	-50	*	(94	/	284)	=	-16.54929575
4	332498	2393	-	2485	=	-92	*	(69	/	284)	=	-22.35211263
5	332501	2427	-	2528	=	-101	*	(66	/	284)	=	-23.47183097
6	332502	2448	-	2552	=	-104	*	(55	/	284)	=	-20.14084498
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Turner 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	9920	2390	-	2436	=	-46	*	(69	/	292)	=	-10.86986297
4	9921	2409	-	2485	=	-76	*	(90	/	292)	=	-23.42465753
5	9923	2427	-	2528	=	-101	*	(63	/	292)	=	-21.79109582
6	9925	2463	-	2552	=	-89	*	(70	/	292)	=	-21.3356164
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Turner Elementary											-77

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	10248	2380	-	2436	=	-56	*	(81	/	276)	=	-16.43478256
4	10249	2426	-	2485	=	-59	*	(63	/	276)	=	-13.46739127
5	10252	2422	-	2528	=	-106	*	(79	/	276)	=	-30.3405797
6	10254	2491	-	2552	=	-61	*	(53	/	276)	=	-11.71376809
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Turner Elementary											-72

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	10266	2417	-	2436	=	-19	*	(82	/	300)	=	-5.19333333
4	10268	2434	-	2485	=	-51	*	(80	/	300)	=	-13.59999997
5	10270	2452	-	2528	=	-76	*	(63	/	300)	=	-15.96
6	10272	2487	-	2552	=	-65	*	(75	/	300)	=	-16.25
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Turner Elementary											-51

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	10346	2400	-	2436	=	-36	*	(85	/	310)	=	-9.87096773
4	10347	2465	-	2485	=	-20	*	(78	/	310)	=	-5.03225806
5	10348	2474	-	2528	=	-54	*	(79	/	310)	=	-13.76129029
6	10349	2486	-	2552	=	-66	*	(68	/	310)	=	-14.47741931
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Turner Elementary											-43

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-83	-77	-72	-51	-43	-326.0	-65.2

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -14.2

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -116.2

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	94%	94%	96%	96%	95%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file