Walnut Elementary (Data source)
Source data for Walnut 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 | 630282 | 2417 | - | 2436 | = | -19 | * | (114 | / | 295) | = | -7.34237286 | ||
| 4 | 630285 | 2434 | - | 2485 | = | -51 | * | (81 | / | 295) | = | -14.00338982 | ||
| 5 | 630286 | 2474 | - | 2528 | = | -54 | * | (100 | / | 295) | = | -18.3050847 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Walnut Elementary | -40 | ||||||||||||
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 | 20139 | 2414 | - | 2436 | = | -22 | * | (96 | / | 291) | = | -7.25773195 | ||
| 4 | 20141 | 2450 | - | 2485 | = | -35 | * | (101 | / | 291) | = | -12.1477663 | ||
| 5 | 20144 | 2456 | - | 2528 | = | -72 | * | (94 | / | 291) | = | -23.25773189 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Walnut Elementary | -43 | ||||||||||||
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 | 20451 | 2441 | - | 2436 | = | 5 | * | (90 | / | 283) | = | 1.59010601 | ||
| 4 | 20454 | 2452 | - | 2485 | = | -33 | * | (91 | / | 283) | = | -10.61130741 | ||
| 5 | 20456 | 2487 | - | 2528 | = | -41 | * | (102 | / | 283) | = | -14.77738515 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Walnut Elementary | -24 | ||||||||||||
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 | 20442 | 2416 | - | 2436 | = | -20 | * | (76 | / | 242) | = | -6.28099172 | ||
| 4 | 20445 | 2471 | - | 2485 | = | -14 | * | (81 | / | 242) | = | -4.6859504 | ||
| 5 | 20446 | 2483 | - | 2528 | = | -45 | * | (85 | / | 242) | = | -15.80578511 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Walnut Elementary | -27 | ||||||||||||
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 | 20624 | 2413 | - | 2436 | = | -23 | * | (70 | / | 243) | = | -6.62551439 | ||
| 4 | 20625 | 2449 | - | 2485 | = | -36 | * | (87 | / | 243) | = | -12.88888888 | ||
| 5 | 20626 | 2505 | - | 2528 | = | -23 | * | (86 | / | 243) | = | -8.1399177 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Walnut Elementary | -28 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -40 | -43 | -24 | -27 | -28 | -162.0 | -32.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -8.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -56.4
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 | 85% | 85% | 83% | 82% | 84% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Baldwin Park Unified school district | County of Los Angeles
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.
Walnut Elementary math proficiency
Zero+ meets standard.
74% less $meal
73% less $meal
65% less $meal
75% less $meal
74% 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.