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	2143662	2433	-	2436	=	-3	*	(117	/	504)	=	-0.69642857
4	2143665	2485	-	2485	=	0	*	(113	/	504)	=	0.0
5	2143666	2528	-	2528	=	0	*	(142	/	504)	=	0.0
6	2143669	2571	-	2552	=	19	*	(132	/	504)	=	4.97619046
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for McMillin (Corky) Elementary											4

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	65797	2452	-	2436	=	16	*	(117	/	491)	=	3.81262728
4	65799	2503	-	2485	=	18	*	(120	/	491)	=	4.39918533
5	65801	2531	-	2528	=	3	*	(111	/	491)	=	0.67820774
6	65803	2567	-	2552	=	15	*	(143	/	491)	=	4.36863543
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for McMillin (Corky) Elementary											13

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	67615	2436	-	2436	=	0	*	(104	/	462)	=	0.0
4	67616	2524	-	2485	=	39	*	(116	/	462)	=	9.79220779
5	67619	2520	-	2528	=	-8	*	(124	/	462)	=	-2.14718614
6	67620	2556	-	2552	=	4	*	(118	/	462)	=	1.02164502
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for McMillin (Corky) Elementary											9

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	67721	2439	-	2436	=	3	*	(103	/	457)	=	0.6761488
4	67722	2526	-	2485	=	41	*	(113	/	457)	=	10.13785557
5	67725	2538	-	2528	=	10	*	(119	/	457)	=	2.60393873
6	67726	2561	-	2552	=	9	*	(122	/	457)	=	2.40262582
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for McMillin (Corky) Elementary											16

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	68236	2441	-	2436	=	5	*	(99	/	446)	=	1.10986547
4	68237	2518	-	2485	=	33	*	(106	/	446)	=	7.84304931
5	68238	2528	-	2528	=	0	*	(118	/	446)	=	0.0
6	68239	2555	-	2552	=	3	*	(123	/	446)	=	0.82735426
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for McMillin (Corky) Elementary											10

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
4	13	9	16	10	52.0	10.4

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: 22.4

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -1.6

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	24%	23%	25%	27%	27%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file