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	341926	2375	-	2436	=	-61	*	(71	/	222)	=	-19.50900896
4	341929	2405	-	2485	=	-80	*	(53	/	222)	=	-19.09909904
5	341930	2403	-	2528	=	-125	*	(48	/	222)	=	-27.027027
6	341933	2460	-	2552	=	-92	*	(50	/	222)	=	-20.7207207
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Susan B. Anthony Elementary											-86

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	10187	2388	-	2436	=	-48	*	(61	/	222)	=	-13.18918915
4	10189	2403	-	2485	=	-82	*	(68	/	222)	=	-25.11711709
5	10192	2421	-	2528	=	-107	*	(46	/	222)	=	-22.17117115
6	10193	2481	-	2552	=	-71	*	(47	/	222)	=	-15.03153148
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Susan B. Anthony Elementary											-76

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	10516	2429	-	2436	=	-7	*	(50	/	214)	=	-1.63551401
4	10517	2415	-	2485	=	-70	*	(65	/	214)	=	-21.26168219
5	10520	2439	-	2528	=	-89	*	(53	/	214)	=	-22.04205604
6	10522	2518	-	2552	=	-34	*	(46	/	214)	=	-7.30841121
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Susan B. Anthony Elementary											-52

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	10527	2419	-	2436	=	-17	*	(60	/	236)	=	-4.3220339
4	10529	2442	-	2485	=	-43	*	(55	/	236)	=	-10.02118642
5	10531	2433	-	2528	=	-95	*	(70	/	236)	=	-28.17796606
6	10533	2507	-	2552	=	-45	*	(51	/	236)	=	-9.72457623
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Susan B. Anthony Elementary											-52

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	10608	2421	-	2436	=	-15	*	(58	/	244)	=	-3.56557377
4	10609	2429	-	2485	=	-56	*	(62	/	244)	=	-14.22950816
5	10610	2467	-	2528	=	-61	*	(54	/	244)	=	-13.49999998
6	10611	2494	-	2552	=	-58	*	(70	/	244)	=	-16.63934421
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Susan B. Anthony Elementary											-48

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-86	-76	-52	-52	-48	-314.0	-62.8

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -11.8

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -113.8

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