West Whittier Elementary (Data source)
Source data for West Whittier 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 | 1151327 | 2377 | - | 2436 | = | -59 | * | (61 | / | 177) | = | -20.33333331 | ||
| 4 | 1151330 | 2402 | - | 2485 | = | -83 | * | (62 | / | 177) | = | -29.07344626 | ||
| 5 | 1151331 | 2429 | - | 2528 | = | -99 | * | (54 | / | 177) | = | -30.20338976 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for West Whittier Elementary | -80 | ||||||||||||
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 | 35831 | 2405 | - | 2436 | = | -31 | * | (49 | / | 166) | = | -9.15060238 | ||
| 4 | 35834 | 2443 | - | 2485 | = | -42 | * | (63 | / | 166) | = | -15.93975902 | ||
| 5 | 35835 | 2436 | - | 2528 | = | -92 | * | (54 | / | 166) | = | -29.92771077 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for West Whittier Elementary | -55 | ||||||||||||
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 | 36548 | 2414 | - | 2436 | = | -22 | * | (60 | / | 173) | = | -7.6300578 | ||
| 4 | 36550 | 2451 | - | 2485 | = | -34 | * | (52 | / | 173) | = | -10.21965316 | ||
| 5 | 36551 | 2490 | - | 2528 | = | -38 | * | (61 | / | 173) | = | -13.39884393 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for West Whittier Elementary | -31 | ||||||||||||
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 | 36533 | 2458 | - | 2436 | = | 22 | * | (51 | / | 151) | = | 7.43046357 | ||
| 4 | 36535 | 2436 | - | 2485 | = | -49 | * | (55 | / | 151) | = | -17.84768209 | ||
| 5 | 36537 | 2459 | - | 2528 | = | -69 | * | (45 | / | 151) | = | -20.56291391 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for West Whittier Elementary | -31 | ||||||||||||
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 | 36696 | 2471 | - | 2436 | = | 35 | * | (56 | / | 171) | = | 11.4619883 | ||
| 4 | 36697 | 2478 | - | 2485 | = | -7 | * | (52 | / | 171) | = | -2.12865497 | ||
| 5 | 36698 | 2463 | - | 2528 | = | -65 | * | (63 | / | 171) | = | -23.94736838 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for West Whittier Elementary | -15 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -80 | -55 | -31 | -31 | -15 | -212.0 | -42.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 32.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -117.4
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 | 84% | 89% | 86% | 86% | 84% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Whittier City Elementary school district | County of Los Angeles
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.
West Whittier Elementary math proficiency
Zero+ meets standard.
73% less $meal
79% less $meal
72% less $meal
76% less $meal
75% 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.