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	924704	2381	-	2436	=	-55	*	(54	/	330)	=	-8.99999997
4	924705	2421	-	2485	=	-64	*	(54	/	330)	=	-10.47272723
5	924708	2428	-	2528	=	-100	*	(72	/	330)	=	-21.8181818
6	924709	2482	-	2552	=	-70	*	(44	/	330)	=	-9.33333331
7	924712	2444	-	2567	=	-123	*	(55	/	330)	=	-20.49999992
8	924713	2460	-	2586	=	-126	*	(51	/	330)	=	-19.4727272
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Logan Academy of Global Ecology											-91

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	29231	2366	-	2436	=	-70	*	(57	/	314)	=	-12.70700634
4	29233	2417	-	2485	=	-68	*	(50	/	314)	=	-10.82802542
5	29234	2427	-	2528	=	-101	*	(48	/	314)	=	-15.43949044
6	29236	2437	-	2552	=	-115	*	(61	/	314)	=	-22.34076423
7	29239	2488	-	2567	=	-79	*	(44	/	314)	=	-11.07006365
8	29241	2487	-	2586	=	-99	*	(54	/	314)	=	-17.02547768
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Logan Academy of Global Ecology											-89

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	29795	2372	-	2436	=	-64	*	(36	/	276)	=	-8.34782605
4	29797	2420	-	2485	=	-65	*	(48	/	276)	=	-11.3043478
5	29799	2448	-	2528	=	-80	*	(48	/	276)	=	-13.91304344
6	29801	2479	-	2552	=	-73	*	(43	/	276)	=	-11.37318837
7	29804	2475	-	2567	=	-92	*	(61	/	276)	=	-20.33333326
8	29805	2526	-	2586	=	-60	*	(40	/	276)	=	-8.69565216
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Logan Academy of Global Ecology											-74

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	29845	2370	-	2436	=	-66	*	(31	/	270)	=	-7.57777772
4	29847	2405	-	2485	=	-80	*	(38	/	270)	=	-11.2592592
5	29849	2449	-	2528	=	-79	*	(46	/	270)	=	-13.45925923
6	29851	2480	-	2552	=	-72	*	(51	/	270)	=	-13.59999994
7	29853	2471	-	2567	=	-96	*	(44	/	270)	=	-15.64444435
8	29855	2481	-	2586	=	-105	*	(60	/	270)	=	-23.33333331
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Logan Academy of Global Ecology											-85

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	30023	2364	-	2436	=	-72	*	(27	/	247)	=	-7.87044528
4	30024	2397	-	2485	=	-88	*	(33	/	247)	=	-11.75708494
5	30025	2419	-	2528	=	-109	*	(34	/	247)	=	-15.00404849
6	30026	2478	-	2552	=	-74	*	(60	/	247)	=	-17.97570845
7	30027	2481	-	2567	=	-86	*	(55	/	247)	=	-19.1497975
8	30028	2486	-	2586	=	-100	*	(38	/	247)	=	-15.3846153
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Logan Academy of Global Ecology											-87

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-91	-89	-74	-85	-87	-426.0	-85.2

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -67.2

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -103.2

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	94%	89%	88%	93%	92%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file