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	326957	2369	-	2436	=	-67	*	(62	/	256)	=	-16.2265625
4	326960	2406	-	2485	=	-79	*	(58	/	256)	=	-17.8984375
5	326961	2430	-	2528	=	-98	*	(64	/	256)	=	-24.5
6	326964	2424	-	2552	=	-128	*	(72	/	256)	=	-36.0
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Jefferson Elementary											-95

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	9754	2396	-	2436	=	-40	*	(67	/	255)	=	-10.50980392
4	9756	2446	-	2485	=	-39	*	(62	/	255)	=	-9.48235291
5	9757	2431	-	2528	=	-97	*	(62	/	255)	=	-23.58431364
6	9759	2474	-	2552	=	-78	*	(64	/	255)	=	-19.57647058
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Jefferson Elementary											-63

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	10081	2415	-	2436	=	-21	*	(59	/	245)	=	-5.05714285
4	10084	2441	-	2485	=	-44	*	(56	/	245)	=	-10.05714283
5	10086	2453	-	2528	=	-75	*	(73	/	245)	=	-22.34693873
6	10087	2460	-	2552	=	-92	*	(57	/	245)	=	-21.40408161
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Jefferson Elementary											-59

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	10099	2402	-	2436	=	-34	*	(63	/	274)	=	-7.81751824
4	10102	2466	-	2485	=	-19	*	(66	/	274)	=	-4.57664233
5	10103	2478	-	2528	=	-50	*	(67	/	274)	=	-12.22627735
6	10106	2464	-	2552	=	-88	*	(78	/	274)	=	-25.05109482
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Jefferson Elementary											-50

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	10180	2425	-	2436	=	-11	*	(60	/	243)	=	-2.71604938
4	10181	2478	-	2485	=	-7	*	(59	/	243)	=	-1.69958847
5	10182	2513	-	2528	=	-15	*	(62	/	243)	=	-3.82716048
6	10183	2504	-	2552	=	-48	*	(62	/	243)	=	-12.24691354
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Jefferson Elementary											-20

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-95	-63	-59	-50	-20	-287.0	-57.4

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: 20.6

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -135.4

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	96%	97%	97%	98%	97%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file