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	2135020	2438	-	2436	=	2	*	(58	/	201)	=	0.57711443
4	2135021	2446	-	2485	=	-39	*	(50	/	201)	=	-9.7014925
5	2135024	2474	-	2528	=	-54	*	(46	/	201)	=	-12.35820893
6	2135025	2501	-	2552	=	-51	*	(47	/	201)	=	-11.9253731
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Palomar Elementary											-33

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	65548	2437	-	2436	=	1	*	(43	/	204)	=	0.21078431
4	65551	2473	-	2485	=	-12	*	(62	/	204)	=	-3.64705882
5	65552	2456	-	2528	=	-72	*	(51	/	204)	=	-18.0
6	65554	2556	-	2552	=	4	*	(48	/	204)	=	0.94117647
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Palomar Elementary											-20

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	67364	2461	-	2436	=	25	*	(45	/	196)	=	5.7397959
4	67366	2476	-	2485	=	-9	*	(43	/	196)	=	-1.9744898
5	67369	2477	-	2528	=	-51	*	(59	/	196)	=	-15.35204081
6	67371	2521	-	2552	=	-31	*	(49	/	196)	=	-7.75
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Palomar Elementary											-19

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	67471	2479	-	2436	=	43	*	(47	/	187)	=	10.80748661
4	67473	2484	-	2485	=	-1	*	(38	/	187)	=	-0.20320856
5	67475	2465	-	2528	=	-63	*	(45	/	187)	=	-15.16042779
6	67477	2525	-	2552	=	-27	*	(57	/	187)	=	-8.22994652
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Palomar Elementary											-13

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	67986	2480	-	2436	=	44	*	(47	/	174)	=	11.88505745
4	67987	2480	-	2485	=	-5	*	(42	/	174)	=	-1.20689655
5	67988	2464	-	2528	=	-64	*	(37	/	174)	=	-13.60919539
6	67989	2477	-	2552	=	-75	*	(48	/	174)	=	-20.6896551
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Palomar Elementary											-24

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-33	-20	-19	-13	-24	-109.0	-21.8

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -0.8

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -42.8

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	75%	75%	75%	76%	82%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file