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	2138234	2396	-	2436	=	-40	*	(88	/	361)	=	-9.75069252
4	2138235	2402	-	2485	=	-83	*	(92	/	361)	=	-21.15235454
5	2138238	2467	-	2528	=	-61	*	(90	/	361)	=	-15.20775622
6	2138239	2491	-	2552	=	-61	*	(91	/	361)	=	-15.37673128
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Juarez-Lincoln Elementary											-61

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	65643	2389	-	2436	=	-47	*	(81	/	349)	=	-10.90830943
4	65644	2443	-	2485	=	-42	*	(84	/	349)	=	-10.10888252
5	65646	2445	-	2528	=	-83	*	(90	/	349)	=	-21.40401145
6	65649	2512	-	2552	=	-40	*	(94	/	349)	=	-10.77363896
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Juarez-Lincoln Elementary											-53

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	67460	2408	-	2436	=	-28	*	(75	/	326)	=	-6.44171777
4	67462	2458	-	2485	=	-27	*	(78	/	326)	=	-6.46012268
5	67465	2482	-	2528	=	-46	*	(85	/	326)	=	-11.99386502
6	67467	2483	-	2552	=	-69	*	(88	/	326)	=	-18.62576685
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Juarez-Lincoln Elementary											-44

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	67566	2424	-	2436	=	-12	*	(78	/	330)	=	-2.83636363
4	67568	2464	-	2485	=	-21	*	(76	/	330)	=	-4.83636363
5	67570	2465	-	2528	=	-63	*	(89	/	330)	=	-16.99090905
6	67572	2523	-	2552	=	-29	*	(87	/	330)	=	-7.64545453
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Juarez-Lincoln Elementary											-32

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	68082	2417	-	2436	=	-19	*	(80	/	304)	=	-4.99999999
4	68083	2464	-	2485	=	-21	*	(71	/	304)	=	-4.90460525
5	68084	2454	-	2528	=	-74	*	(71	/	304)	=	-17.28289469
6	68085	2530	-	2552	=	-22	*	(82	/	304)	=	-5.93421052
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Juarez-Lincoln Elementary											-33

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-61	-53	-44	-32	-33	-223.0	-44.6

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -8.6

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -80.6

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	75%	70%	73%	74%	81%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file