San Luis Obispo County Community (Data source)
Source data for San Luis Obispo County Community
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 |
||
| 7 | 2479337 | 0 | - | 2567 | = | * | (3 | / | 62) | = | ||||
| 8 | 2479338 | 0 | - | 2586 | = | * | (9 | / | 62) | = | ||||
| 11 | 2479341 | 2432 | - | 2628 | = | -196 | * | (50 | / | 62) | = | -158.06451595 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for San Luis Obispo County Community | -158 | ||||||||||||
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 |
||
| 7 | 75562 | 0 | - | 2567 | = | * | (6 | / | 57) | = | ||||
| 8 | 75564 | 2445 | - | 2586 | = | -141 | * | (12 | / | 57) | = | -29.68421042 | ||
| 11 | 75566 | 2420 | - | 2628 | = | -208 | * | (39 | / | 57) | = | -142.31578941 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for San Luis Obispo County Community | -172 | ||||||||||||
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 |
||
| 7 | 77582 | 0 | - | 2567 | = | * | (0 | / | 54) | = | ||||
| 8 | 77584 | 2414 | - | 2586 | = | -172 | * | (18 | / | 54) | = | -57.33333328 | ||
| 11 | 77587 | 2427 | - | 2628 | = | -201 | * | (32 | / | 54) | = | -119.11111099 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for San Luis Obispo County Community | -176 | ||||||||||||
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 |
||
| 8 | 77763 | 0 | - | 2586 | = | * | (0 | / | 25) | = | ||||
| 11 | 77766 | 2427 | - | 2628 | = | -201 | * | (20 | / | 25) | = | -160.8 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for San Luis Obispo County Community | -161 | ||||||||||||
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 |
||
| 7 | 78297 | 0 | - | 2567 | = | * | (0 | / | 22) | = | ||||
| 8 | 78298 | 0 | - | 2586 | = | * | (6 | / | 22) | = | ||||
| 11 | 78299 | 2385 | - | 2628 | = | -243 | * | (14 | / | 22) | = | -154.63636355 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for San Luis Obispo County Community | -155 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -158 | -172 | -176 | -161 | -155 | -822.0 | -164.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -137.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -191.4
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 | 71% | 84% | 82% | 87% | 75% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Luis Obispo County Office of Education school district | County of San Luis Obispo
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation: wealth/poverty.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
San Luis Obispo County Community math proficiency
Zero+ meets standard.
62% less $meal
77% less $meal
74% less $meal
80% less $meal
75% less $meal
• Any result above zero is proficient; below is not proficient. • There is a 99% chance that results will remain the same in coming years, which is to say, between the Upper and Lower Control Limits (the gray lines). • The houses with the % of students receiving a Free or Reduced Price Meal is a measure of wealth/poverty.
County Community schools in San Luis Obispo County Office of Education (1)
| San Luis Obispo County Community |