Gibson Elementary (Data source)
Source data for Gibson 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 | 3185519 | 2379 | - | 2436 | = | -57 | * | (91 | / | 331) | = | -15.67069485 | ||
| 4 | 3185520 | 2419 | - | 2485 | = | -66 | * | (88 | / | 331) | = | -17.54682778 | ||
| 5 | 3185523 | 2457 | - | 2528 | = | -71 | * | (93 | / | 331) | = | -19.94864046 | ||
| 6 | 3185524 | 2483 | - | 2552 | = | -69 | * | (59 | / | 331) | = | -12.29909365 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Gibson Elementary | -65 | ||||||||||||
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 | 98178 | 2391 | - | 2436 | = | -45 | * | (74 | / | 337) | = | -9.88130561 | ||
| 4 | 98180 | 2415 | - | 2485 | = | -70 | * | (87 | / | 337) | = | -18.07121659 | ||
| 5 | 98183 | 2446 | - | 2528 | = | -82 | * | (82 | / | 337) | = | -19.95252224 | ||
| 6 | 98184 | 2479 | - | 2552 | = | -73 | * | (94 | / | 337) | = | -20.36201775 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Gibson Elementary | -68 | ||||||||||||
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 | 101045 | 2375 | - | 2436 | = | -61 | * | (69 | / | 306) | = | -13.75490196 | ||
| 4 | 101047 | 2439 | - | 2485 | = | -46 | * | (77 | / | 306) | = | -11.57516336 | ||
| 5 | 101049 | 2424 | - | 2528 | = | -104 | * | (79 | / | 306) | = | -26.84967314 | ||
| 6 | 101051 | 2467 | - | 2552 | = | -85 | * | (81 | / | 306) | = | -22.49999997 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Gibson Elementary | -75 | ||||||||||||
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 | 101199 | 2388 | - | 2436 | = | -48 | * | (78 | / | 325) | = | -11.52 | ||
| 4 | 101200 | 2411 | - | 2485 | = | -74 | * | (72 | / | 325) | = | -16.39384611 | ||
| 5 | 101203 | 2463 | - | 2528 | = | -65 | * | (80 | / | 325) | = | -15.99999999 | ||
| 6 | 101204 | 2443 | - | 2552 | = | -109 | * | (95 | / | 325) | = | -31.86153843 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Gibson Elementary | -76 | ||||||||||||
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 | 101858 | 2407 | - | 2436 | = | -29 | * | (57 | / | 272) | = | -6.07720587 | ||
| 4 | 101859 | 2444 | - | 2485 | = | -41 | * | (76 | / | 272) | = | -11.45588232 | ||
| 5 | 101860 | 2437 | - | 2528 | = | -91 | * | (62 | / | 272) | = | -20.74264702 | ||
| 6 | 101861 | 2480 | - | 2552 | = | -72 | * | (77 | / | 272) | = | -20.38235292 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Gibson Elementary | -59 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -65 | -68 | -75 | -76 | -59 | -343.0 | -68.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -47.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -89.6
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 | 64% | 67% | 62% | 64% | 62% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Woodland Joint Unified school district | County of Yolo
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.
Gibson Elementary math proficiency
Zero+ meets standard.
51% less $meal
55% less $meal
56% less $meal
56% less $meal
53% 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.