Rail Ranch Elementary (Data source)
Source data for Rail Ranch 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 | 1780605 | 2435 | - | 2436 | = | -1 | * | (89 | / | 318) | = | -0.27987421 | ||
| 4 | 1780606 | 2465 | - | 2485 | = | -20 | * | (111 | / | 318) | = | -6.98113206 | ||
| 5 | 1780609 | 2521 | - | 2528 | = | -7 | * | (118 | / | 318) | = | -2.59748427 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rail Ranch Elementary | -10 | ||||||||||||
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 | 55233 | 2420 | - | 2436 | = | -16 | * | (100 | / | 293) | = | -5.46075085 | ||
| 4 | 55235 | 2480 | - | 2485 | = | -5 | * | (82 | / | 293) | = | -1.39931741 | ||
| 5 | 55236 | 2515 | - | 2528 | = | -13 | * | (111 | / | 293) | = | -4.92491467 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rail Ranch Elementary | -12 | ||||||||||||
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 | 56844 | 2436 | - | 2436 | = | 0 | * | (102 | / | 301) | = | 0.0 | ||
| 4 | 56845 | 2491 | - | 2485 | = | 6 | * | (114 | / | 301) | = | 2.27242525 | ||
| 5 | 56848 | 2534 | - | 2528 | = | 6 | * | (85 | / | 301) | = | 1.69435216 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rail Ranch Elementary | 4 | ||||||||||||
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 | 56950 | 2458 | - | 2436 | = | 22 | * | (103 | / | 324) | = | 6.99382715 | ||
| 4 | 56952 | 2491 | - | 2485 | = | 6 | * | (113 | / | 324) | = | 2.09259259 | ||
| 5 | 56955 | 2526 | - | 2528 | = | -2 | * | (108 | / | 324) | = | -0.66666667 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rail Ranch Elementary | 8 | ||||||||||||
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 | 57203 | 2460 | - | 2436 | = | 24 | * | (103 | / | 336) | = | 7.35714286 | ||
| 4 | 57204 | 2513 | - | 2485 | = | 28 | * | (110 | / | 336) | = | 9.16666666 | ||
| 5 | 57205 | 2523 | - | 2528 | = | -5 | * | (123 | / | 336) | = | -1.83035714 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rail Ranch Elementary | 15 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -10 | -12 | 4 | 8 | 15 | 5.0 | 1.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 34.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -32.0
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 | 37% | 41% | 41% | 49% | 48% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Murrieta Valley Unified school district | County of Riverside
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.
Rail Ranch Elementary math proficiency
Zero+ meets standard.
28% less $meal
30% less $meal
30% less $meal
39% less $meal
38% 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.