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	1538405	2348	-	2436	=	-88	*	(104	/	315)	=	-29.05396824
4	1538408	2428	-	2485	=	-57	*	(113	/	315)	=	-20.44761901
5	1538409	2458	-	2528	=	-70	*	(98	/	315)	=	-21.77777777
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Monte Vista Elementary											-71

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	48194	2371	-	2436	=	-65	*	(102	/	286)	=	-23.18181814
4	48197	2421	-	2485	=	-64	*	(83	/	286)	=	-18.57342656
5	48199	2463	-	2528	=	-65	*	(101	/	286)	=	-22.95454545
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Monte Vista Elementary											-65

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	49523	2370	-	2436	=	-66	*	(95	/	271)	=	-23.13653133
4	49525	2392	-	2485	=	-93	*	(92	/	271)	=	-31.57195564
5	49526	2443	-	2528	=	-85	*	(84	/	271)	=	-26.34686342
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Monte Vista Elementary											-81

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	49537	2406	-	2436	=	-30	*	(73	/	258)	=	-8.48837208
4	49538	2421	-	2485	=	-64	*	(95	/	258)	=	-23.56589146
5	49541	2436	-	2528	=	-92	*	(90	/	258)	=	-32.09302323
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Monte Vista 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	49735	2389	-	2436	=	-47	*	(77	/	241)	=	-15.01659748
4	49736	2448	-	2485	=	-37	*	(76	/	241)	=	-11.66804979
5	49737	2463	-	2528	=	-65	*	(88	/	241)	=	-23.73443982
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Monte Vista Elementary											-50

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-71	-65	-81	-64	-50	-331.0	-66.2

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -33.2

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -99.2

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	92%	97%	93%	95%	96%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file