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	2139552	2457	-	2436	=	21	*	(79	/	300)	=	5.52999999
4	2139553	2489	-	2485	=	4	*	(69	/	300)	=	0.92
5	2139556	2522	-	2528	=	-6	*	(64	/	300)	=	-1.28
6	2139557	2541	-	2552	=	-11	*	(88	/	300)	=	-3.22666666
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Chula Vista Hills Elementary											2

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	65683	2463	-	2436	=	27	*	(69	/	280)	=	6.65357142
4	65684	2497	-	2485	=	12	*	(77	/	280)	=	3.3
5	65687	2521	-	2528	=	-7	*	(70	/	280)	=	-1.75
6	65688	2567	-	2552	=	15	*	(64	/	280)	=	3.42857142
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Chula Vista Hills Elementary											12

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	67500	2482	-	2436	=	46	*	(73	/	312)	=	10.76282047
4	67502	2520	-	2485	=	35	*	(79	/	312)	=	8.86217948
5	67504	2525	-	2528	=	-3	*	(85	/	312)	=	-0.81730769
6	67507	2558	-	2552	=	6	*	(75	/	312)	=	1.44230769
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Chula Vista Hills 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	67607	2471	-	2436	=	35	*	(65	/	299)	=	7.60869564
4	67609	2523	-	2485	=	38	*	(74	/	299)	=	9.40468224
5	67611	2525	-	2528	=	-3	*	(75	/	299)	=	-0.75250836
6	67613	2573	-	2552	=	21	*	(85	/	299)	=	5.96989966
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Chula Vista Hills Elementary											22

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	68122	2469	-	2436	=	33	*	(72	/	296)	=	8.02702702
4	68123	2508	-	2485	=	23	*	(71	/	296)	=	5.51689187
5	68124	2525	-	2528	=	-3	*	(72	/	296)	=	-0.72972973
6	68125	2558	-	2552	=	6	*	(81	/	296)	=	1.64189189
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Chula Vista Hills Elementary											14

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
2	12	20	22	14	70.0	14.0

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: 35.0

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -7.0

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	36%	34%	32%	41%	39%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file