Wilson Elementary (Data source)
Source data for Wilson 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 | 2463260 | 2401 | - | 2436 | = | -35 | * | (60 | / | 203) | = | -10.34482757 | ||
| 4 | 2463261 | 2431 | - | 2485 | = | -54 | * | (29 | / | 203) | = | -7.71428567 | ||
| 5 | 2463264 | 2444 | - | 2528 | = | -84 | * | (32 | / | 203) | = | -13.24137923 | ||
| 6 | 2463265 | 2485 | - | 2552 | = | -67 | * | (29 | / | 203) | = | -9.57142851 | ||
| 7 | 2463268 | 2488 | - | 2567 | = | -79 | * | (28 | / | 203) | = | -10.89655169 | ||
| 8 | 2463269 | 2525 | - | 2586 | = | -61 | * | (25 | / | 203) | = | -7.51231525 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Wilson Elementary | -59 | ||||||||||||
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 | 75122 | 2384 | - | 2436 | = | -52 | * | (59 | / | 206) | = | -14.89320383 | ||
| 4 | 75123 | 2405 | - | 2485 | = | -80 | * | (33 | / | 206) | = | -12.81553392 | ||
| 5 | 75125 | 2460 | - | 2528 | = | -68 | * | (30 | / | 206) | = | -9.90291256 | ||
| 6 | 75128 | 2499 | - | 2552 | = | -53 | * | (30 | / | 206) | = | -7.71844655 | ||
| 7 | 75130 | 2505 | - | 2567 | = | -62 | * | (27 | / | 206) | = | -8.12621358 | ||
| 8 | 75132 | 2486 | - | 2586 | = | -100 | * | (27 | / | 206) | = | -13.1067961 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Wilson Elementary | -67 | ||||||||||||
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 | 77130 | 2375 | - | 2436 | = | -61 | * | (58 | / | 208) | = | -17.00961533 | ||
| 4 | 77133 | 2381 | - | 2485 | = | -104 | * | (32 | / | 208) | = | -15.99999991 | ||
| 5 | 77135 | 2445 | - | 2528 | = | -83 | * | (30 | / | 208) | = | -11.97115383 | ||
| 6 | 77137 | 2517 | - | 2552 | = | -35 | * | (28 | / | 208) | = | -4.71153844 | ||
| 7 | 77138 | 2506 | - | 2567 | = | -61 | * | (31 | / | 208) | = | -9.09134612 | ||
| 8 | 77140 | 2492 | - | 2586 | = | -94 | * | (29 | / | 208) | = | -13.10576914 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Wilson Elementary | -72 | ||||||||||||
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 | 77319 | 2415 | - | 2436 | = | -21 | * | (49 | / | 212) | = | -4.85377358 | ||
| 4 | 77321 | 2420 | - | 2485 | = | -65 | * | (42 | / | 212) | = | -12.87735846 | ||
| 5 | 77323 | 2456 | - | 2528 | = | -72 | * | (30 | / | 212) | = | -10.18867918 | ||
| 6 | 77325 | 2470 | - | 2552 | = | -82 | * | (31 | / | 212) | = | -11.99056603 | ||
| 7 | 77327 | 2497 | - | 2567 | = | -70 | * | (29 | / | 212) | = | -9.57547164 | ||
| 8 | 77329 | 2505 | - | 2586 | = | -81 | * | (31 | / | 212) | = | -11.84433962 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Wilson Elementary | -61 | ||||||||||||
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 | 77842 | 2365 | - | 2436 | = | -71 | * | (44 | / | 189) | = | -16.52910047 | ||
| 4 | 77843 | 2480 | - | 2485 | = | -5 | * | (29 | / | 189) | = | -0.76719577 | ||
| 5 | 77844 | 2394 | - | 2528 | = | -134 | * | (31 | / | 189) | = | -21.97883598 | ||
| 6 | 77845 | 2447 | - | 2552 | = | -105 | * | (29 | / | 189) | = | -16.11111107 | ||
| 7 | 77846 | 2464 | - | 2567 | = | -103 | * | (29 | / | 189) | = | -15.80423276 | ||
| 8 | 77847 | 2505 | - | 2586 | = | -81 | * | (27 | / | 189) | = | -11.5714285 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Wilson Elementary | -83 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -59 | -67 | -72 | -61 | -83 | -342.0 | -68.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -41.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -95.4
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 | 85% | 70% | 75% | 82% | 80% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Stockton Unified school district | County of San Joaquin
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.
Wilson Elementary math proficiency
Zero+ meets standard.
79% less $meal
68% less $meal
71% less $meal
80% less $meal
77% 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.