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	1431418	2479	-	2436	=	43	*	(212	/	602)	=	15.14285712
4	1431419	2518	-	2485	=	33	*	(190	/	602)	=	10.41528236
5	1431422	2541	-	2528	=	13	*	(200	/	602)	=	4.31893687
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Oso Grande Elementary											30

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	45074	2496	-	2436	=	60	*	(197	/	597)	=	19.79899494
4	45077	2542	-	2485	=	57	*	(206	/	597)	=	19.66834168
5	45078	2553	-	2528	=	25	*	(194	/	597)	=	8.12395308
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Oso Grande Elementary											48

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	46276	2478	-	2436	=	42	*	(202	/	595)	=	14.25882352
4	46279	2536	-	2485	=	51	*	(190	/	595)	=	16.28571428
5	46281	2564	-	2528	=	36	*	(203	/	595)	=	12.28235292
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Oso Grande Elementary											43

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	46286	2494	-	2436	=	58	*	(227	/	636)	=	20.7012578
4	46289	2532	-	2485	=	47	*	(210	/	636)	=	15.51886791
5	46290	2564	-	2528	=	36	*	(199	/	636)	=	11.26415092
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Oso Grande Elementary											47

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	46461	2504	-	2436	=	68	*	(202	/	641)	=	21.42901714
4	46462	2541	-	2485	=	56	*	(221	/	641)	=	19.30733224
5	46463	2554	-	2528	=	26	*	(218	/	641)	=	8.84243368
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Oso Grande Elementary											50

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
30	48	43	47	50	218.0	43.6

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: 67.6

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: 19.6

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	3%	3%	3%	5%	5%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file