SCHOOLIO: Districts

Gridley Unified school district (Data source)

County of Butte

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	158359	2422	-	2436	=	-14	*	(145	/	1067)	=	-1.90253045
4	158360	2448	-	2485	=	-37	*	(154	/	1067)	=	-5.34020615
5	158363	2477	-	2528	=	-51	*	(161	/	1067)	=	-7.69540765
6	158364	2483	-	2552	=	-69	*	(163	/	1067)	=	-10.54076851
7	158367	2514	-	2567	=	-53	*	(140	/	1067)	=	-6.95407684
8	158368	2519	-	2586	=	-67	*	(140	/	1067)	=	-8.7910028
11	158371	2565	-	2628	=	-63	*	(164	/	1067)	=	-9.68322398
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Gridley Unified											-51

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	4679	2424	-	2436	=	-12	*	(148	/	1053)	=	-1.68660968
4	4681	2478	-	2485	=	-7	*	(142	/	1053)	=	-0.94396961
5	4684	2496	-	2528	=	-32	*	(153	/	1053)	=	-4.64957264
6	4686	2480	-	2552	=	-72	*	(156	/	1053)	=	-10.66666666
7	4687	2513	-	2567	=	-54	*	(168	/	1053)	=	-8.61538459
8	4690	2527	-	2586	=	-59	*	(142	/	1053)	=	-7.95631526
11	4691	2584	-	2628	=	-44	*	(144	/	1053)	=	-6.01709398
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Gridley Unified											-41

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	4777	2428	-	2436	=	-8	*	(138	/	1026)	=	-1.07602338
4	4780	2454	-	2485	=	-31	*	(148	/	1026)	=	-4.47173487
5	4781	2493	-	2528	=	-35	*	(139	/	1026)	=	-4.74171537
6	4784	2494	-	2552	=	-58	*	(152	/	1026)	=	-8.59259258
7	4785	2494	-	2567	=	-73	*	(156	/	1026)	=	-11.09941516
8	4788	2508	-	2586	=	-78	*	(165	/	1026)	=	-12.54385961
11	4789	2583	-	2628	=	-45	*	(128	/	1026)	=	-5.61403508
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Gridley Unified											-48

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	4765	2447	-	2436	=	11	*	(136	/	1039)	=	1.439846
4	4768	2468	-	2485	=	-17	*	(145	/	1039)	=	-2.37247352
5	4769	2489	-	2528	=	-39	*	(146	/	1039)	=	-5.48026947
6	4772	2506	-	2552	=	-46	*	(141	/	1039)	=	-6.24254086
7	4773	2521	-	2567	=	-46	*	(149	/	1039)	=	-6.59672761
8	4776	2507	-	2586	=	-79	*	(151	/	1039)	=	-11.48123195
11	4777	2581	-	2628	=	-47	*	(171	/	1039)	=	-7.73532242
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Gridley Unified											-38

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	4799	2429	-	2436	=	-7	*	(162	/	1062)	=	-1.0677966
4	4800	2470	-	2485	=	-15	*	(144	/	1062)	=	-2.0338983
5	4801	2473	-	2528	=	-55	*	(143	/	1062)	=	-7.405838
6	4802	2490	-	2552	=	-62	*	(153	/	1062)	=	-8.93220335
7	4803	2528	-	2567	=	-39	*	(151	/	1062)	=	-5.54519772
8	4804	2541	-	2586	=	-45	*	(152	/	1062)	=	-6.44067797
11	4805	2553	-	2628	=	-75	*	(157	/	1062)	=	-11.08757055
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Gridley Unified											-43

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-51	-41	-48	-38	-43	-221.0	-44.2

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -29.2

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -59.2

For the lines, you have the data necessary to plot the chart.

THIS chart shows what the school system "wants"

NOT what school board members want.

NOT what superintendents want.

More about this chart.

Students would perform better the more years in school IF the follow-the-schedule method wanted that.

But that's not what it "wants"...and it's not a coincidence this pattern repeats (repeatedly).

The system (the follow-the-schedule method) "wants" schools to perform poorer, relative to grade level, the more years students spend in public school.

• Any result above zero is proficient; below is not proficient.

Gridley Unified math proficiency

Zero+ meets standard.

Schools in Gridley Unified

Elementary School (Public) (2)

McKinley Elementary

Wilson Elementary

High Schools (Public) (1)

Gridley High

Intermediate/Middle Schools (Public) (1)

Sycamore Middle

Continuation High Schools (1)

Esperanza High (Continuation)

Schools in Gridley Unified

Enrollment by school type, school and year

	2015	2016	2017	2018	2019	2020	2021	2022
Gridley Unified School District	2,050	2,066	2,018	2,056	2,082	2,087	2,080	2,029
Elementary School (Public)
McKinley Elementary	339	335	327	311	334	319	323	331
Wilson Elementary	605	602	578	601	585	606	580	540
High Schools (Public)
Gridley High	622	617	616	637	666	655	673	668
Intermediate/Middle Schools (Public)
Sycamore Middle	464	478	473	472	464	465	453	455
Continuation High Schools
Esperanza High (Continuation)	19	34	24	35	33	42	51	35
District Community Day Schools
Gridley Unified Community Day (7-12)	1

Gridley Unified school district (Data source)

County of Butte

THIS chart shows what the school system "wants"

Students would perform better the more years in school IF the follow-the-schedule method wanted that.

The system (the follow-the-schedule method) "wants" schools to perform poorer, relative to grade level, the more years students spend in public school.

Schools in Gridley Unified

Elementary School (Public) (2)

High Schools (Public) (1)

Intermediate/Middle Schools (Public) (1)

Continuation High Schools (1)

Schools in Gridley Unified

Enrollment by school type, school and year

Elementary School (Public)

High Schools (Public)

Intermediate/Middle Schools (Public)

Continuation High Schools

District Community Day Schools