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	324620	2401	-	2436	=	-35	*	(105	/	347)	=	-10.59077807
4	324621	2418	-	2485	=	-67	*	(80	/	347)	=	-15.44668585
5	324624	2449	-	2528	=	-79	*	(75	/	347)	=	-17.07492791
6	324625	2479	-	2552	=	-73	*	(87	/	347)	=	-18.30259365
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Figarden 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	9683	2425	-	2436	=	-11	*	(90	/	334)	=	-2.96407185
4	9685	2422	-	2485	=	-63	*	(96	/	334)	=	-18.10778439
5	9687	2444	-	2528	=	-84	*	(78	/	334)	=	-19.61676646
6	9690	2486	-	2552	=	-66	*	(70	/	334)	=	-13.83233531
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Figarden Elementary											-55

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	10012	2432	-	2436	=	-4	*	(81	/	328)	=	-0.98780488
4	10014	2445	-	2485	=	-40	*	(73	/	328)	=	-8.902439
5	10016	2429	-	2528	=	-99	*	(94	/	328)	=	-28.37195114
6	10017	2502	-	2552	=	-50	*	(80	/	328)	=	-12.19512195
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Figarden Elementary											-50

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	10030	2449	-	2436	=	13	*	(83	/	300)	=	3.59666666
4	10032	2439	-	2485	=	-46	*	(77	/	300)	=	-11.80666664
5	10034	2438	-	2528	=	-90	*	(60	/	300)	=	-18.0
6	10036	2488	-	2552	=	-64	*	(80	/	300)	=	-17.06666662
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Figarden Elementary											-43

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	10110	2426	-	2436	=	-10	*	(76	/	307)	=	-2.47557003
4	10111	2479	-	2485	=	-6	*	(83	/	307)	=	-1.62214984
5	10112	2457	-	2528	=	-71	*	(75	/	307)	=	-17.34527685
6	10113	2515	-	2552	=	-37	*	(73	/	307)	=	-8.79804559
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Figarden Elementary											-30

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-61	-55	-50	-43	-30	-239.0	-47.8

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -14.8

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -80.8

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	68%	68%	72%	75%	75%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file