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	93017	2381	-	2436	=	-55	*	(27	/	115)	=	-12.91304344
4	93020	2421	-	2485	=	-64	*	(47	/	115)	=	-26.15652173
5	93021	2434	-	2528	=	-94	*	(24	/	115)	=	-19.61739129
6	93024	2488	-	2552	=	-64	*	(17	/	115)	=	-9.4608695
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Parker Elementary											-68

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	2617	2426	-	2436	=	-10	*	(39	/	161)	=	-2.42236024
4	2620	2424	-	2485	=	-61	*	(30	/	161)	=	-11.36645958
5	2621	2462	-	2528	=	-66	*	(43	/	161)	=	-17.62732917
6	2624	2479	-	2552	=	-73	*	(32	/	161)	=	-14.5093167
7	2625	2476	-	2567	=	-91	*	(17	/	161)	=	-9.60869564
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Parker Elementary											-56

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	2690	2434	-	2436	=	-2	*	(37	/	184)	=	-0.40217391
4	2691	2436	-	2485	=	-49	*	(35	/	184)	=	-9.32065216
5	2694	2415	-	2528	=	-113	*	(34	/	184)	=	-20.8804347
6	2696	2508	-	2552	=	-44	*	(41	/	184)	=	-9.80434778
7	2698	2500	-	2567	=	-67	*	(28	/	184)	=	-10.19565217
8	2700	0	-	2586	=		*	(0	/	184)	=
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Parker Elementary											-51

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	2694	2367	-	2436	=	-69	*	(28	/	188)	=	-10.27659573
4	2696	2415	-	2485	=	-70	*	(36	/	188)	=	-13.40425527
5	2698	2461	-	2528	=	-67	*	(28	/	188)	=	-9.97872339
6	2700	2452	-	2552	=	-100	*	(37	/	188)	=	-19.680851
7	2702	2514	-	2567	=	-53	*	(37	/	188)	=	-10.43085103
8	2704	2478	-	2586	=	-108	*	(22	/	188)	=	-12.63829781
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Parker Elementary											-76

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	2718	2374	-	2436	=	-62	*	(36	/	185)	=	-12.06486483
4	2719	2404	-	2485	=	-81	*	(21	/	185)	=	-9.19459455
5	2720	2438	-	2528	=	-90	*	(37	/	185)	=	-18.0
6	2721	2419	-	2552	=	-133	*	(28	/	185)	=	-20.12972968
7	2722	2501	-	2567	=	-66	*	(30	/	185)	=	-10.70270269
8	2723	2446	-	2586	=	-140	*	(33	/	185)	=	-24.97297292
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Parker Elementary											-95

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-68	-56	-51	-76	-95	-346.0	-69.2

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -18.2

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -120.2

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	92%	92%	93%	90%	92%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file