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	89970	2332	-	2436	=	-104	*	(52	/	150)	=	-36.05333326
4	89971	2410	-	2485	=	-75	*	(50	/	150)	=	-24.99999998
5	89974	2420	-	2528	=	-108	*	(48	/	150)	=	-34.56
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for New Highland Academy											-96

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	2524	2325	-	2436	=	-111	*	(52	/	148)	=	-38.99999996
4	2526	2407	-	2485	=	-78	*	(50	/	148)	=	-26.35135129
5	2528	2398	-	2528	=	-130	*	(46	/	148)	=	-40.4054053
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for New Highland Academy											-106

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	2596	2325	-	2436	=	-111	*	(64	/	169)	=	-42.03550286
4	2598	2402	-	2485	=	-83	*	(50	/	169)	=	-24.556213
5	2599	2423	-	2528	=	-105	*	(55	/	169)	=	-34.17159753
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for New Highland Academy											-101

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	2600	2336	-	2436	=	-100	*	(56	/	164)	=	-34.1463414
4	2602	2397	-	2485	=	-88	*	(60	/	164)	=	-32.1951219
5	2604	2412	-	2528	=	-116	*	(48	/	164)	=	-33.95121942
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for New Highland Academy											-100

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	2621	2363	-	2436	=	-73	*	(63	/	177)	=	-25.98305082
4	2622	2412	-	2485	=	-73	*	(58	/	177)	=	-23.9209039
5	2623	2393	-	2528	=	-135	*	(56	/	177)	=	-42.7118643
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for New Highland Academy											-93

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-96	-106	-101	-100	-93	-496.0	-99.2

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -87.2

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -111.2

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	75%	94%	94%	97%	98%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file