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	2315615	2421	-	2436	=	-15	*	(29	/	780)	=	-0.55769231
4	2315616	2480	-	2485	=	-5	*	(29	/	780)	=	-0.18589744
5	2315619	2517	-	2528	=	-11	*	(56	/	780)	=	-0.78974358
6	2315620	2514	-	2552	=	-38	*	(187	/	780)	=	-9.11025638
7	2315623	2530	-	2567	=	-37	*	(190	/	780)	=	-9.01282049
8	2315624	2544	-	2586	=	-42	*	(181	/	780)	=	-9.74615384
11	2315627	2660	-	2628	=	32	*	(108	/	780)	=	4.43076922
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Guajome Park Academy Charter											-25

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	70877	2403	-	2436	=	-33	*	(29	/	841)	=	-1.13793101
4	70880	2455	-	2485	=	-30	*	(29	/	841)	=	-1.03448274
5	70881	2483	-	2528	=	-45	*	(57	/	841)	=	-3.04994052
6	70883	2507	-	2552	=	-45	*	(208	/	841)	=	-11.12960759
7	70886	2520	-	2567	=	-47	*	(198	/	841)	=	-11.06539833
8	70888	2528	-	2586	=	-58	*	(206	/	841)	=	-14.20689654
11	70890	2645	-	2628	=	17	*	(114	/	841)	=	2.30439952
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Guajome Park Academy Charter											-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	72724	2411	-	2436	=	-25	*	(37	/	863)	=	-1.0718424
4	72727	2454	-	2485	=	-31	*	(39	/	863)	=	-1.40092698
5	72728	2503	-	2528	=	-25	*	(56	/	863)	=	-1.62224795
6	72730	2513	-	2552	=	-39	*	(201	/	863)	=	-9.08342986
7	72733	2522	-	2567	=	-45	*	(203	/	863)	=	-10.58516798
8	72735	2541	-	2586	=	-45	*	(188	/	863)	=	-9.80301272
11	72736	2658	-	2628	=	30	*	(139	/	863)	=	4.83198144
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Guajome Park Academy Charter											-29

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	72850	2415	-	2436	=	-21	*	(37	/	824)	=	-0.94296115
4	72852	2454	-	2485	=	-31	*	(37	/	824)	=	-1.39199027
5	72854	2480	-	2528	=	-48	*	(55	/	824)	=	-3.20388346
6	72856	2507	-	2552	=	-45	*	(188	/	824)	=	-10.26699026
7	72858	2529	-	2567	=	-38	*	(203	/	824)	=	-9.36165047
8	72860	2536	-	2586	=	-50	*	(203	/	824)	=	-12.31796115
11	72862	2630	-	2628	=	2	*	(101	/	824)	=	0.24514563
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Guajome Park Academy Charter											-37

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	73329	2448	-	2436	=	12	*	(46	/	844)	=	0.65402843
4	73330	2446	-	2485	=	-39	*	(49	/	844)	=	-2.26421801
5	73331	2511	-	2528	=	-17	*	(52	/	844)	=	-1.04739336
6	73332	2502	-	2552	=	-50	*	(192	/	844)	=	-11.37440755
7	73333	2504	-	2567	=	-63	*	(191	/	844)	=	-14.25710897
8	73334	2534	-	2586	=	-52	*	(197	/	844)	=	-12.13744074
11	73335	2597	-	2628	=	-31	*	(117	/	844)	=	-4.29739335
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Guajome Park Academy Charter											-45

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-25	-39	-29	-37	-45	-175.0	-35.0

Compute the Upper Control Limit

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

Compute the Lower Control Limit

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

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	51%	49%	60%	61%	58%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file