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	328863	2417	-	2436	=	-19	*	(71	/	230)	=	-5.86521739
4	328866	2428	-	2485	=	-57	*	(67	/	230)	=	-16.60434778
5	328867	2437	-	2528	=	-91	*	(46	/	230)	=	-18.2
6	328870	2476	-	2552	=	-76	*	(46	/	230)	=	-15.2
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Malloch Elementary											-56

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	9813	2443	-	2436	=	7	*	(74	/	243)	=	2.13168724
4	9816	2450	-	2485	=	-35	*	(68	/	243)	=	-9.79423865
5	9818	2450	-	2528	=	-78	*	(54	/	243)	=	-17.33333332
6	9819	2480	-	2552	=	-72	*	(47	/	243)	=	-13.92592586
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Malloch Elementary											-39

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	10141	2427	-	2436	=	-9	*	(45	/	235)	=	-1.72340425
4	10144	2474	-	2485	=	-11	*	(72	/	235)	=	-3.37021276
5	10146	2468	-	2528	=	-60	*	(63	/	235)	=	-16.08510636
6	10147	2500	-	2552	=	-52	*	(55	/	235)	=	-12.17021276
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Malloch Elementary											-33

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	10160	2447	-	2436	=	11	*	(70	/	231)	=	3.33333333
4	10162	2506	-	2485	=	21	*	(47	/	231)	=	4.27272726
5	10164	2494	-	2528	=	-34	*	(56	/	231)	=	-8.24242423
6	10166	2539	-	2552	=	-13	*	(58	/	231)	=	-3.26406926
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Malloch Elementary											-4

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	10240	2459	-	2436	=	23	*	(60	/	223)	=	6.18834079
4	10241	2501	-	2485	=	16	*	(68	/	223)	=	4.87892376
5	10242	2530	-	2528	=	2	*	(37	/	223)	=	0.33183856
6	10243	2522	-	2552	=	-30	*	(58	/	223)	=	-7.80269058
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Malloch Elementary											4

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-56	-39	-33	-4	4	-128.0	-25.6

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: 49.4

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -100.6

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	47%	50%	49%	51%	47%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file