Cottonwood Elementary (Data source)
Source data for Cottonwood 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 | 2092886 | 2370 | - | 2436 | = | -66 | * | (117 | / | 499) | = | -15.47494984 | ||
| 4 | 2092887 | 2429 | - | 2485 | = | -56 | * | (128 | / | 499) | = | -14.36472946 | ||
| 5 | 2092890 | 2438 | - | 2528 | = | -90 | * | (133 | / | 499) | = | -23.98797594 | ||
| 6 | 2092891 | 2472 | - | 2552 | = | -80 | * | (121 | / | 499) | = | -19.39879752 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Cottonwood Elementary | -73 | ||||||||||||
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 | 64311 | 2387 | - | 2436 | = | -49 | * | (118 | / | 524) | = | -11.03435111 | ||
| 4 | 64312 | 2424 | - | 2485 | = | -61 | * | (127 | / | 524) | = | -14.78435113 | ||
| 5 | 64314 | 2442 | - | 2528 | = | -86 | * | (137 | / | 524) | = | -22.48473277 | ||
| 6 | 64316 | 2464 | - | 2552 | = | -88 | * | (142 | / | 524) | = | -23.84732821 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Cottonwood Elementary | -72 | ||||||||||||
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 | 66122 | 2376 | - | 2436 | = | -60 | * | (121 | / | 515) | = | -14.09708736 | ||
| 4 | 66124 | 2435 | - | 2485 | = | -50 | * | (119 | / | 515) | = | -11.55339805 | ||
| 5 | 66126 | 2434 | - | 2528 | = | -94 | * | (133 | / | 515) | = | -24.27572814 | ||
| 6 | 66129 | 2470 | - | 2552 | = | -82 | * | (142 | / | 515) | = | -22.60970871 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Cottonwood Elementary | -73 | ||||||||||||
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 | 66193 | 2402 | - | 2436 | = | -34 | * | (122 | / | 510) | = | -8.13333332 | ||
| 4 | 66195 | 2425 | - | 2485 | = | -60 | * | (131 | / | 510) | = | -15.4117647 | ||
| 5 | 66197 | 2457 | - | 2528 | = | -71 | * | (120 | / | 510) | = | -16.70588231 | ||
| 6 | 66199 | 2464 | - | 2552 | = | -88 | * | (137 | / | 510) | = | -23.6392156 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Cottonwood Elementary | -64 | ||||||||||||
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 | 66582 | 2393 | - | 2436 | = | -43 | * | (129 | / | 494) | = | -11.22874493 | ||
| 4 | 66583 | 2437 | - | 2485 | = | -48 | * | (118 | / | 494) | = | -11.46558701 | ||
| 5 | 66584 | 2450 | - | 2528 | = | -78 | * | (124 | / | 494) | = | -19.57894731 | ||
| 6 | 66585 | 2470 | - | 2552 | = | -82 | * | (123 | / | 494) | = | -20.41700403 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Cottonwood Elementary | -63 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -73 | -72 | -73 | -64 | -63 | -345.0 | -69.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -54.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -84.0
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 | 74% | 80% | 73% | 79% | 78% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Hesperia 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.
Cottonwood Elementary math proficiency
Zero+ meets standard.
64% less $meal
68% less $meal
68% less $meal
71% less $meal
72% 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.