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	2262105	2397	-	2436	=	-39	*	(115	/	303)	=	-14.80198017
4	2262107	2436	-	2485	=	-49	*	(96	/	303)	=	-15.52475247
5	2262109	2462	-	2528	=	-66	*	(92	/	303)	=	-20.03960396
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sherman Elementary											-50

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	69409	2421	-	2436	=	-15	*	(114	/	311)	=	-5.49839228
4	69412	2468	-	2485	=	-17	*	(108	/	311)	=	-5.90353698
5	69414	2494	-	2528	=	-34	*	(89	/	311)	=	-9.72990352
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sherman Elementary											-21

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	71243	2423	-	2436	=	-13	*	(100	/	314)	=	-4.14012738
4	71245	2464	-	2485	=	-21	*	(110	/	314)	=	-7.35668789
5	71247	2501	-	2528	=	-27	*	(104	/	314)	=	-8.94267516
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sherman Elementary											-20

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	71387	2424	-	2436	=	-12	*	(100	/	291)	=	-4.12371133
4	71389	2461	-	2485	=	-24	*	(92	/	291)	=	-7.58762885
5	71391	2504	-	2528	=	-24	*	(99	/	291)	=	-8.16494844
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sherman Elementary											-20

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	71875	2431	-	2436	=	-5	*	(93	/	271)	=	-1.71586716
4	71876	2452	-	2485	=	-33	*	(87	/	271)	=	-10.59409593
5	71877	2500	-	2528	=	-28	*	(91	/	271)	=	-9.402214
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sherman Elementary											-22

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-50	-21	-20	-20	-22	-133.0	-26.6

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: 12.4

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -65.6

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	87%	90%	90%	87%	87%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file