Blue Oak Charter (Data source)
Source data for Blue Oak Charter
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 | 143179 | 2354 | - | 2436 | = | -82 | * | (46 | / | 266) | = | -14.18045106 | ||
| 4 | 143182 | 2441 | - | 2485 | = | -44 | * | (42 | / | 266) | = | -6.94736838 | ||
| 5 | 143183 | 2475 | - | 2528 | = | -53 | * | (48 | / | 266) | = | -9.56390973 | ||
| 6 | 143186 | 2487 | - | 2552 | = | -65 | * | (52 | / | 266) | = | -12.70676687 | ||
| 7 | 143187 | 2518 | - | 2567 | = | -49 | * | (47 | / | 266) | = | -8.65789472 | ||
| 8 | 143190 | 2563 | - | 2586 | = | -23 | * | (31 | / | 266) | = | -2.68045112 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Blue Oak Charter | -55 | ||||||||||||
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 | 4143 | 2376 | - | 2436 | = | -60 | * | (46 | / | 262) | = | -10.53435114 | ||
| 4 | 4146 | 2458 | - | 2485 | = | -27 | * | (43 | / | 262) | = | -4.4312977 | ||
| 5 | 4148 | 2480 | - | 2528 | = | -48 | * | (38 | / | 262) | = | -6.96183202 | ||
| 6 | 4149 | 2499 | - | 2552 | = | -53 | * | (48 | / | 262) | = | -9.70992362 | ||
| 7 | 4152 | 2527 | - | 2567 | = | -40 | * | (43 | / | 262) | = | -6.56488548 | ||
| 8 | 4154 | 2555 | - | 2586 | = | -31 | * | (44 | / | 262) | = | -5.20610686 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Blue Oak Charter | -43 | ||||||||||||
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 | 4220 | 2387 | - | 2436 | = | -49 | * | (24 | / | 216) | = | -5.44444444 | ||
| 4 | 4221 | 2415 | - | 2485 | = | -70 | * | (45 | / | 216) | = | -14.58333331 | ||
| 5 | 4223 | 2467 | - | 2528 | = | -61 | * | (53 | / | 216) | = | -14.96759257 | ||
| 6 | 4225 | 2520 | - | 2552 | = | -32 | * | (35 | / | 216) | = | -5.18518518 | ||
| 7 | 4227 | 2532 | - | 2567 | = | -35 | * | (23 | / | 216) | = | -3.72685184 | ||
| 8 | 4230 | 2550 | - | 2586 | = | -36 | * | (36 | / | 216) | = | -5.99999998 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Blue Oak Charter | -50 | ||||||||||||
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 | 4221 | 2393 | - | 2436 | = | -43 | * | (54 | / | 213) | = | -10.90140842 | ||
| 4 | 4224 | 2489 | - | 2485 | = | 4 | * | (22 | / | 213) | = | 0.41314554 | ||
| 5 | 4225 | 2423 | - | 2528 | = | -105 | * | (48 | / | 213) | = | -23.66197176 | ||
| 6 | 4228 | 2513 | - | 2552 | = | -39 | * | (44 | / | 213) | = | -8.05633799 | ||
| 7 | 4229 | 2573 | - | 2567 | = | 6 | * | (24 | / | 213) | = | 0.67605634 | ||
| 8 | 4232 | 2529 | - | 2586 | = | -57 | * | (21 | / | 213) | = | -5.61971829 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Blue Oak Charter | -47 | ||||||||||||
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 | 4278 | 2381 | - | 2436 | = | -55 | * | (37 | / | 225) | = | -9.04444442 | ||
| 4 | 4279 | 2425 | - | 2485 | = | -60 | * | (52 | / | 225) | = | -13.86666666 | ||
| 5 | 4280 | 2511 | - | 2528 | = | -17 | * | (27 | / | 225) | = | -2.04 | ||
| 6 | 4281 | 2467 | - | 2552 | = | -85 | * | (47 | / | 225) | = | -17.75555548 | ||
| 7 | 4282 | 2545 | - | 2567 | = | -22 | * | (37 | / | 225) | = | -3.61777777 | ||
| 8 | 4283 | 2575 | - | 2586 | = | -11 | * | (25 | / | 225) | = | -1.22222222 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Blue Oak Charter | -48 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -55 | -43 | -50 | -47 | -48 | -243.0 | -48.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average:
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average:
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 | 59% | 58% | 46% | 56% | 54% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Chico Unified school district | County of Butte
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.
