Nord Country (Data source)
Source data for Nord Country
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 | 135482 | 2408 | - | 2436 | = | -28 | * | (22 | / | 76) | = | -8.10526315 | ||
| 4 | 135485 | 2487 | - | 2485 | = | 2 | * | (18 | / | 76) | = | 0.47368421 | ||
| 5 | 135486 | 2471 | - | 2528 | = | -57 | * | (16 | / | 76) | = | -11.99999996 | ||
| 6 | 135488 | 2486 | - | 2552 | = | -66 | * | (20 | / | 76) | = | -17.368421 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Nord Country | -37 | ||||||||||||
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 | 3891 | 2385 | - | 2436 | = | -51 | * | (17 | / | 97) | = | -8.93814428 | ||
| 4 | 3894 | 2436 | - | 2485 | = | -49 | * | (22 | / | 97) | = | -11.11340203 | ||
| 5 | 3896 | 2508 | - | 2528 | = | -20 | * | (23 | / | 97) | = | -4.74226804 | ||
| 6 | 3898 | 2487 | - | 2552 | = | -65 | * | (20 | / | 97) | = | -13.40206186 | ||
| 7 | 3900 | 2585 | - | 2567 | = | 18 | * | (15 | / | 97) | = | 2.78350515 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Nord Country | -35 | ||||||||||||
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 | 3972 | 2421 | - | 2436 | = | -15 | * | (21 | / | 109) | = | -2.88990825 | ||
| 4 | 3973 | 2434 | - | 2485 | = | -51 | * | (15 | / | 109) | = | -7.01834858 | ||
| 5 | 3975 | 2495 | - | 2528 | = | -33 | * | (19 | / | 109) | = | -5.75229356 | ||
| 6 | 3978 | 2537 | - | 2552 | = | -15 | * | (20 | / | 109) | = | -2.75229357 | ||
| 7 | 3980 | 2562 | - | 2567 | = | -5 | * | (18 | / | 109) | = | -0.82568807 | ||
| 8 | 3981 | 2583 | - | 2586 | = | -3 | * | (16 | / | 109) | = | -0.44036697 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Nord Country | -20 | ||||||||||||
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 | 3977 | 2429 | - | 2436 | = | -7 | * | (22 | / | 110) | = | -1.4 | ||
| 4 | 3980 | 2446 | - | 2485 | = | -39 | * | (20 | / | 110) | = | -7.09090906 | ||
| 5 | 3981 | 2485 | - | 2528 | = | -43 | * | (14 | / | 110) | = | -5.47272726 | ||
| 6 | 3984 | 2523 | - | 2552 | = | -29 | * | (18 | / | 110) | = | -4.74545453 | ||
| 7 | 3985 | 2598 | - | 2567 | = | 31 | * | (17 | / | 110) | = | 4.79090907 | ||
| 8 | 3988 | 2591 | - | 2586 | = | 5 | * | (19 | / | 110) | = | 0.86363636 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Nord Country | -13 | ||||||||||||
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 | 4020 | 2444 | - | 2436 | = | 8 | * | (22 | / | 109) | = | 1.6146789 | ||
| 4 | 4021 | 2470 | - | 2485 | = | -15 | * | (24 | / | 109) | = | -3.30275229 | ||
| 5 | 4022 | 2496 | - | 2528 | = | -32 | * | (21 | / | 109) | = | -6.1651376 | ||
| 6 | 4023 | 0 | - | 2552 | = | * | (8 | / | 109) | = | ||||
| 7 | 4024 | 2578 | - | 2567 | = | 11 | * | (16 | / | 109) | = | 1.61467889 | ||
| 8 | 4025 | 2597 | - | 2586 | = | 11 | * | (18 | / | 109) | = | 1.81651375 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Nord Country | -4 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -37 | -35 | -20 | -13 | -4 | -109.0 | -21.8 |
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% | 51% | 43% | 45% | 34% |
| 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.
