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	1438627	2418	-	2436	=	-18	*	(51	/	210)	=	-4.37142856
4	1438629	2480	-	2485	=	-5	*	(70	/	210)	=	-1.66666667
5	1438631	2486	-	2528	=	-42	*	(89	/	210)	=	-17.79999997
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Carl Hankey Elementary											-24

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	45289	2428	-	2436	=	-8	*	(60	/	185)	=	-2.59459459
4	45290	2474	-	2485	=	-11	*	(54	/	185)	=	-3.2108108
5	45292	2537	-	2528	=	9	*	(71	/	185)	=	3.45405405
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Carl Hankey Elementary											-2

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	46498	2431	-	2436	=	-5	*	(73	/	203)	=	-1.79802956
4	46500	2483	-	2485	=	-2	*	(71	/	203)	=	-0.69950739
5	46502	2516	-	2528	=	-12	*	(59	/	203)	=	-3.48768473
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Carl Hankey Elementary											-6

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	46509	2440	-	2436	=	4	*	(60	/	204)	=	1.17647059
4	46511	2471	-	2485	=	-14	*	(72	/	204)	=	-4.94117646
5	46513	2522	-	2528	=	-6	*	(72	/	204)	=	-2.11764706
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Carl Hankey Elementary											-6

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	46691	2445	-	2436	=	9	*	(56	/	181)	=	2.78453039
4	46692	2498	-	2485	=	13	*	(56	/	181)	=	4.02209945
5	46693	2528	-	2528	=	0	*	(69	/	181)	=	0.0
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Carl Hankey Elementary											7

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-24	-2	-6	-6	7	-31.0	-6.2

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: 26.8

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -39.2

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	35%	37%	42%	44%	41%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file