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	2133197	2388	-	2436	=	-48	*	(38	/	184)	=	-9.91304347
4	2133200	2430	-	2485	=	-55	*	(47	/	184)	=	-14.04891301
5	2133201	2478	-	2528	=	-50	*	(41	/	184)	=	-11.1413043
6	2133204	2481	-	2552	=	-71	*	(58	/	184)	=	-22.38043476
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Kellogg (Karl H.) Elementary											-57

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	65495	2405	-	2436	=	-31	*	(38	/	173)	=	-6.80924855
4	65496	2418	-	2485	=	-67	*	(41	/	173)	=	-15.87861267
5	65498	2445	-	2528	=	-83	*	(45	/	173)	=	-21.5895953
6	65501	2479	-	2552	=	-73	*	(49	/	173)	=	-20.67630056
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Kellogg (Karl H.) Elementary											-65

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	67310	2392	-	2436	=	-44	*	(48	/	180)	=	-11.7333333
4	67312	2416	-	2485	=	-69	*	(41	/	180)	=	-15.71666661
5	67315	2437	-	2528	=	-91	*	(40	/	180)	=	-20.2222222
6	67316	2457	-	2552	=	-95	*	(51	/	180)	=	-26.91666664
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Kellogg (Karl H.) Elementary											-75

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	67417	2401	-	2436	=	-35	*	(33	/	166)	=	-6.9578313
4	67418	2425	-	2485	=	-60	*	(47	/	166)	=	-16.9879518
5	67421	2465	-	2528	=	-63	*	(46	/	166)	=	-17.45783128
6	67422	2521	-	2552	=	-31	*	(40	/	166)	=	-7.46987951
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Kellogg (Karl H.) Elementary											-49

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	67932	2450	-	2436	=	14	*	(42	/	169)	=	3.47928994
4	67933	2433	-	2485	=	-52	*	(34	/	169)	=	-10.46153841
5	67934	2494	-	2528	=	-34	*	(46	/	169)	=	-9.25443787
6	67935	2534	-	2552	=	-18	*	(47	/	169)	=	-5.00591714
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Kellogg (Karl H.) Elementary											-21

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-57	-65	-75	-49	-21	-267.0	-53.4

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: 6.6

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -113.4

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	73%	68%	75%	78%	85%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file