W. D. Hall Elementary (Data source)
Source data for W. D. Hall 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 | 2122400 | 2406 | - | 2436 | = | -30 | * | (102 | / | 269) | = | -11.37546468 | ||
| 4 | 2122403 | 2446 | - | 2485 | = | -39 | * | (85 | / | 269) | = | -12.32342007 | ||
| 5 | 2122404 | 2482 | - | 2528 | = | -46 | * | (82 | / | 269) | = | -14.0223048 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for W. D. Hall Elementary | -38 | ||||||||||||
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 | 65183 | 2382 | - | 2436 | = | -54 | * | (121 | / | 360) | = | -18.14999999 | ||
| 4 | 65184 | 2439 | - | 2485 | = | -46 | * | (127 | / | 360) | = | -16.22777774 | ||
| 5 | 65186 | 2454 | - | 2528 | = | -74 | * | (112 | / | 360) | = | -23.02222221 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for W. D. Hall Elementary | -57 | ||||||||||||
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 | 66999 | 2371 | - | 2436 | = | -65 | * | (82 | / | 325) | = | -16.39999998 | ||
| 4 | 67001 | 2441 | - | 2485 | = | -44 | * | (117 | / | 325) | = | -15.84 | ||
| 5 | 67003 | 2444 | - | 2528 | = | -84 | * | (126 | / | 325) | = | -32.56615379 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for W. D. Hall Elementary | -65 | ||||||||||||
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 | 67102 | 2376 | - | 2436 | = | -60 | * | (93 | / | 292) | = | -19.109589 | ||
| 4 | 67104 | 2416 | - | 2485 | = | -69 | * | (77 | / | 292) | = | -18.19520547 | ||
| 5 | 67106 | 2446 | - | 2528 | = | -82 | * | (122 | / | 292) | = | -34.26027396 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for W. D. Hall Elementary | -72 | ||||||||||||
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 | 67599 | 2395 | - | 2436 | = | -41 | * | (90 | / | 258) | = | -14.30232557 | ||
| 4 | 67600 | 2422 | - | 2485 | = | -63 | * | (91 | / | 258) | = | -22.22093021 | ||
| 5 | 67601 | 2437 | - | 2528 | = | -91 | * | (77 | / | 258) | = | -27.15891469 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for W. D. Hall Elementary | -64 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -38 | -57 | -65 | -72 | -64 | -296.0 | -59.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -23.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -95.2
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 | 66% | 69% | 79% | 78% | 82% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Cajon Valley Union school district | County of San Diego
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.
W. D. Hall Elementary math proficiency
Zero+ meets standard.
58% less $meal
64% less $meal
71% less $meal
69% less $meal
72% 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.