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	2130199	2455	-	2436	=	19	*	(59	/	233)	=	4.8111588
4	2130202	2470	-	2485	=	-15	*	(55	/	233)	=	-3.54077253
5	2130203	2520	-	2528	=	-8	*	(59	/	233)	=	-2.02575107
6	2130206	2578	-	2552	=	26	*	(60	/	233)	=	6.69527895
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Allen (Ella B.) Elementary											6

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	65405	2460	-	2436	=	24	*	(58	/	238)	=	5.84873947
4	65407	2479	-	2485	=	-6	*	(62	/	238)	=	-1.56302521
5	65408	2500	-	2528	=	-28	*	(57	/	238)	=	-6.70588234
6	65411	2592	-	2552	=	40	*	(61	/	238)	=	10.25210084
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Allen (Ella B.) Elementary											8

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	67221	2475	-	2436	=	39	*	(48	/	230)	=	8.13913043
4	67223	2461	-	2485	=	-24	*	(61	/	230)	=	-6.36521738
5	67225	2515	-	2528	=	-13	*	(61	/	230)	=	-3.44782608
6	67227	2564	-	2552	=	12	*	(60	/	230)	=	3.13043478
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Allen (Ella B.) Elementary											1

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	67327	2435	-	2436	=	-1	*	(52	/	221)	=	-0.23529412
4	67328	2499	-	2485	=	14	*	(46	/	221)	=	2.91402714
5	67331	2461	-	2528	=	-67	*	(61	/	221)	=	-18.49321263
6	67332	2576	-	2552	=	24	*	(62	/	221)	=	6.73303166
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Allen (Ella B.) Elementary											-9

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	67842	2489	-	2436	=	53	*	(63	/	219)	=	15.2465753
4	67843	2490	-	2485	=	5	*	(52	/	219)	=	1.18721461
5	67844	2522	-	2528	=	-6	*	(47	/	219)	=	-1.28767123
6	67845	2548	-	2552	=	-4	*	(57	/	219)	=	-1.04109589
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Allen (Ella B.) Elementary											14

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
6	8	1	-9	14	20.0	4.0

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: 28.0

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -20.0

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	42%	39%	35%	37%	40%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file