California Elementary (Data source)
Source data for California Elementary
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 | 1511328 | 2386 | - | 2436 | = | -50 | * | (98 | / | 314) | = | -15.6050955 | ||
| 4 | 1511329 | 2411 | - | 2485 | = | -74 | * | (92 | / | 314) | = | -21.68152862 | ||
| 5 | 1511332 | 2434 | - | 2528 | = | -94 | * | (124 | / | 314) | = | -37.12101905 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for California Elementary | -74 | ||||||||||||
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 | 47362 | 2408 | - | 2436 | = | -28 | * | (89 | / | 279) | = | -8.93189962 | ||
| 4 | 47364 | 2429 | - | 2485 | = | -56 | * | (100 | / | 279) | = | -20.07168458 | ||
| 5 | 47367 | 2430 | - | 2528 | = | -98 | * | (90 | / | 279) | = | -31.61290321 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for California Elementary | -61 | ||||||||||||
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 | 48665 | 2395 | - | 2436 | = | -41 | * | (91 | / | 279) | = | -13.37275983 | ||
| 4 | 48667 | 2429 | - | 2485 | = | -56 | * | (89 | / | 279) | = | -17.86379924 | ||
| 5 | 48669 | 2432 | - | 2528 | = | -96 | * | (99 | / | 279) | = | -34.06451606 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for California Elementary | -65 | ||||||||||||
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 | 48677 | 2395 | - | 2436 | = | -41 | * | (99 | / | 279) | = | -14.54838707 | ||
| 4 | 48678 | 2439 | - | 2485 | = | -46 | * | (93 | / | 279) | = | -15.33333332 | ||
| 5 | 48681 | 2455 | - | 2528 | = | -73 | * | (87 | / | 279) | = | -22.76344079 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for California Elementary | -53 | ||||||||||||
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 | 48881 | 2384 | - | 2436 | = | -52 | * | (101 | / | 283) | = | -18.55830387 | ||
| 4 | 48882 | 2456 | - | 2485 | = | -29 | * | (94 | / | 283) | = | -9.63250883 | ||
| 5 | 48883 | 2472 | - | 2528 | = | -56 | * | (88 | / | 283) | = | -17.41342753 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for California Elementary | -46 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -74 | -61 | -65 | -53 | -46 | -299.0 | -59.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -29.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -89.8
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 | 93% | 93% | 89% | 88% | 93% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Orange Unified school district | County of Orange
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.
California Elementary math proficiency
Zero+ meets standard.
87% less $meal
88% less $meal
84% less $meal
84% less $meal
86% 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.