Nancy R. Kordyak Elementary (Data source)
Source data for Nancy R. Kordyak 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 | 2028813 | 2422 | - | 2436 | = | -14 | * | (78 | / | 264) | = | -4.13636363 | ||
| 4 | 2028814 | 2451 | - | 2485 | = | -34 | * | (99 | / | 264) | = | -12.75 | ||
| 5 | 2028817 | 2466 | - | 2528 | = | -62 | * | (87 | / | 264) | = | -20.43181815 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Nancy R. Kordyak Elementary | -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 | 62358 | 2438 | - | 2436 | = | 2 | * | (71 | / | 259) | = | 0.54826255 | ||
| 4 | 62360 | 2455 | - | 2485 | = | -30 | * | (93 | / | 259) | = | -10.77220077 | ||
| 5 | 62362 | 2468 | - | 2528 | = | -60 | * | (95 | / | 259) | = | -22.00772196 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Nancy R. Kordyak Elementary | -32 | ||||||||||||
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 | 64139 | 2414 | - | 2436 | = | -22 | * | (88 | / | 278) | = | -6.96402876 | ||
| 4 | 64141 | 2447 | - | 2485 | = | -38 | * | (83 | / | 278) | = | -11.34532374 | ||
| 5 | 64142 | 2459 | - | 2528 | = | -69 | * | (107 | / | 278) | = | -26.55755393 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Nancy R. Kordyak Elementary | -45 | ||||||||||||
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 | 64243 | 2412 | - | 2436 | = | -24 | * | (83 | / | 262) | = | -7.60305343 | ||
| 4 | 64245 | 2459 | - | 2485 | = | -26 | * | (92 | / | 262) | = | -9.12977099 | ||
| 5 | 64247 | 2450 | - | 2528 | = | -78 | * | (87 | / | 262) | = | -25.9007633 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Nancy R. Kordyak Elementary | -43 | ||||||||||||
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 | 64611 | 2427 | - | 2436 | = | -9 | * | (91 | / | 275) | = | -2.97818181 | ||
| 4 | 64612 | 2476 | - | 2485 | = | -9 | * | (91 | / | 275) | = | -2.97818181 | ||
| 5 | 64613 | 2482 | - | 2528 | = | -46 | * | (93 | / | 275) | = | -15.55636363 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Nancy R. Kordyak Elementary | -22 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -37 | -32 | -45 | -43 | -22 | -179.0 | -35.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -8.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -62.8
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 | 62% | 64% | 66% | 67% | 69% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Rialto 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.
Nancy R. Kordyak Elementary math proficiency
Zero+ meets standard.
51% less $meal
56% less $meal
56% less $meal
57% less $meal
58% 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.