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	3202200	2414	-	2436	=	-22	*	(14	/	38)	=	-8.10526314
4	3202203	0	-	2485	=		*	(9	/	38)	=
5	3202204	2528	-	2528	=	0	*	(15	/	38)	=	0.0
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Wheatland Charter Academy											-8

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	98694	2437	-	2436	=	1	*	(11	/	20)	=	0.55
4	98697	0	-	2485	=		*	(9	/	20)	=
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Wheatland Charter Academy											1

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	101563	2435	-	2436	=	-1	*	(20	/	32)	=	-0.625
4	101566	2478	-	2485	=	-7	*	(12	/	32)	=	-2.625
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Wheatland Charter Academy											-3

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	101712	2436	-	2436	=	0	*	(13	/	25)	=	0.0
4	101715	2504	-	2485	=	19	*	(12	/	25)	=	9.12
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Wheatland Charter Academy											9

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	102363	2436	-	2436	=	0	*	(20	/	51)	=	0.0
4	102364	2476	-	2485	=	-9	*	(12	/	51)	=	-2.11764705
5	102365	2507	-	2528	=	-21	*	(19	/	51)	=	-7.8235294
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Wheatland Charter Academy											-10

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-8	1	-3	9	-10	-11.0	-2.2

Compute the Upper Control Limit

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

Compute the Lower Control Limit

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

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	46%	55%	54%	49%	44%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file