Murphy Ranch Elementary (Data source)
Source data for Murphy 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 | 686725 | 2460 | - | 2436 | = | 24 | * | (115 | / | 298) | = | 9.26174496 | ||
| 4 | 686726 | 2513 | - | 2485 | = | 28 | * | (86 | / | 298) | = | 8.08053691 | ||
| 5 | 686729 | 2531 | - | 2528 | = | 3 | * | (97 | / | 298) | = | 0.97651007 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Murphy Ranch Elementary | 18 | ||||||||||||
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 | 21704 | 2482 | - | 2436 | = | 46 | * | (86 | / | 284) | = | 13.92957745 | ||
| 4 | 21707 | 2503 | - | 2485 | = | 18 | * | (111 | / | 284) | = | 7.03521126 | ||
| 5 | 21709 | 2557 | - | 2528 | = | 29 | * | (87 | / | 284) | = | 8.88380281 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Murphy Ranch Elementary | 30 | ||||||||||||
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 | 22124 | 2465 | - | 2436 | = | 29 | * | (84 | / | 280) | = | 8.7 | ||
| 4 | 22126 | 2521 | - | 2485 | = | 36 | * | (87 | / | 280) | = | 11.18571426 | ||
| 5 | 22127 | 2519 | - | 2528 | = | -9 | * | (109 | / | 280) | = | -3.50357143 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Murphy Ranch Elementary | 16 | ||||||||||||
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 | 22110 | 2482 | - | 2436 | = | 46 | * | (102 | / | 274) | = | 17.12408756 | ||
| 4 | 22112 | 2514 | - | 2485 | = | 29 | * | (85 | / | 274) | = | 8.99635036 | ||
| 5 | 22114 | 2543 | - | 2528 | = | 15 | * | (87 | / | 274) | = | 4.76277372 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Murphy Ranch Elementary | 31 | ||||||||||||
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 | 22288 | 2482 | - | 2436 | = | 46 | * | (93 | / | 284) | = | 15.06338025 | ||
| 4 | 22289 | 2526 | - | 2485 | = | 41 | * | (101 | / | 284) | = | 14.58098588 | ||
| 5 | 22290 | 2537 | - | 2528 | = | 9 | * | (90 | / | 284) | = | 2.85211267 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Murphy Ranch Elementary | 32 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 18 | 30 | 16 | 31 | 32 | 127.0 | 25.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 46.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 4.4
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 | 18% | 18% | 16% | 23% | 23% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
East Whittier City Elementary 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.
Murphy Ranch Elementary math proficiency
Zero+ meets standard.
14% less $meal
12% less $meal
12% less $meal
20% less $meal
18% 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.