Samuel W. Simpson Elementary (Data source)
Source data for Samuel W. Simpson 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 | 2033821 | 2413 | - | 2436 | = | -23 | * | (112 | / | 346) | = | -7.44508668 | ||
| 4 | 2033822 | 2441 | - | 2485 | = | -44 | * | (127 | / | 346) | = | -16.15028901 | ||
| 5 | 2033825 | 2439 | - | 2528 | = | -89 | * | (107 | / | 346) | = | -27.52312131 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Samuel W. Simpson Elementary | -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 | 62495 | 2419 | - | 2436 | = | -17 | * | (120 | / | 376) | = | -5.42553191 | ||
| 4 | 62497 | 2428 | - | 2485 | = | -57 | * | (122 | / | 376) | = | -18.49468085 | ||
| 5 | 62498 | 2468 | - | 2528 | = | -60 | * | (134 | / | 376) | = | -21.38297868 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Samuel W. Simpson Elementary | -45 | ||||||||||||
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 | 64287 | 2426 | - | 2436 | = | -10 | * | (128 | / | 372) | = | -3.44086021 | ||
| 4 | 64288 | 2424 | - | 2485 | = | -61 | * | (120 | / | 372) | = | -19.67741935 | ||
| 5 | 64291 | 2462 | - | 2528 | = | -66 | * | (124 | / | 372) | = | -21.99999998 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Samuel W. Simpson Elementary | -45 | ||||||||||||
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 | 64394 | 2425 | - | 2436 | = | -11 | * | (115 | / | 374) | = | -3.38235294 | ||
| 4 | 64395 | 2477 | - | 2485 | = | -8 | * | (136 | / | 374) | = | -2.9090909 | ||
| 5 | 64398 | 2468 | - | 2528 | = | -60 | * | (123 | / | 374) | = | -19.7326203 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Samuel W. Simpson Elementary | -26 | ||||||||||||
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 | 64761 | 2420 | - | 2436 | = | -16 | * | (121 | / | 373) | = | -5.19034851 | ||
| 4 | 64762 | 2488 | - | 2485 | = | 3 | * | (119 | / | 373) | = | 0.95710456 | ||
| 5 | 64763 | 2470 | - | 2528 | = | -58 | * | (133 | / | 373) | = | -20.68096511 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Samuel W. Simpson Elementary | -25 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -51 | -45 | -45 | -26 | -25 | -192.0 | -38.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -2.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -74.4
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 | 77% | 85% | 82% | 81% | 90% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Rialto Unified school district | County of San Bernardino
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.
Samuel W. Simpson Elementary math proficiency
Zero+ meets standard.
66% less $meal
71% less $meal
71% less $meal
72% less $meal
79% 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.