Imperial Elementary (Data source)
Source data for Imperial 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 | 1519919 | 2464 | - | 2436 | = | 28 | * | (60 | / | 237) | = | 7.08860757 | ||
| 4 | 1519920 | 2488 | - | 2485 | = | 3 | * | (60 | / | 237) | = | 0.75949367 | ||
| 5 | 1519923 | 2494 | - | 2528 | = | -34 | * | (52 | / | 237) | = | -7.45991559 | ||
| 6 | 1519924 | 2540 | - | 2552 | = | -12 | * | (65 | / | 237) | = | -3.29113924 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Imperial Elementary | -3 | ||||||||||||
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 | 47622 | 2479 | - | 2436 | = | 43 | * | (60 | / | 243) | = | 10.61728394 | ||
| 4 | 47624 | 2485 | - | 2485 | = | 0 | * | (55 | / | 243) | = | 0.0 | ||
| 5 | 47626 | 2512 | - | 2528 | = | -16 | * | (67 | / | 243) | = | -4.41152262 | ||
| 6 | 47629 | 2549 | - | 2552 | = | -3 | * | (61 | / | 243) | = | -0.75308642 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Imperial Elementary | 5 | ||||||||||||
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 | 48917 | 2480 | - | 2436 | = | 44 | * | (64 | / | 243) | = | 11.58847734 | ||
| 4 | 48918 | 2496 | - | 2485 | = | 11 | * | (54 | / | 243) | = | 2.44444444 | ||
| 5 | 48921 | 2501 | - | 2528 | = | -27 | * | (55 | / | 243) | = | -6.1111111 | ||
| 6 | 48923 | 2560 | - | 2552 | = | 8 | * | (70 | / | 243) | = | 2.30452674 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Imperial Elementary | 10 | ||||||||||||
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 | 48939 | 2442 | - | 2436 | = | 6 | * | (53 | / | 227) | = | 1.40088106 | ||
| 4 | 48941 | 2500 | - | 2485 | = | 15 | * | (60 | / | 227) | = | 3.9647577 | ||
| 5 | 48943 | 2530 | - | 2528 | = | 2 | * | (54 | / | 227) | = | 0.47577092 | ||
| 6 | 48945 | 2562 | - | 2552 | = | 10 | * | (60 | / | 227) | = | 2.6431718 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Imperial 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 | 49138 | 2462 | - | 2436 | = | 26 | * | (66 | / | 261) | = | 6.57471264 | ||
| 4 | 49139 | 2496 | - | 2485 | = | 11 | * | (60 | / | 261) | = | 2.52873563 | ||
| 5 | 49140 | 2513 | - | 2528 | = | -15 | * | (72 | / | 261) | = | -4.13793102 | ||
| 6 | 49141 | 2561 | - | 2552 | = | 9 | * | (63 | / | 261) | = | 2.17241379 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Imperial Elementary | 7 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -3 | 5 | 10 | 8 | 7 | 27.0 | 5.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 20.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -9.6
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 | 12% | 13% | 13% | 14% | 18% |
| 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.
Imperial Elementary math proficiency
Zero+ meets standard.
9% less $meal
11% less $meal
9% less $meal
14% less $meal
17% 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.