Lydia Jackson Elementary (Data source)
Source data for Lydia Jackson 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 | 1150003 | 2363 | - | 2436 | = | -73 | * | (53 | / | 173) | = | -22.36416181 | ||
| 4 | 1150006 | 2421 | - | 2485 | = | -64 | * | (63 | / | 173) | = | -23.30635834 | ||
| 5 | 1150007 | 2447 | - | 2528 | = | -81 | * | (57 | / | 173) | = | -26.68786121 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Lydia Jackson Elementary | -72 | ||||||||||||
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 | 35785 | 2379 | - | 2436 | = | -57 | * | (72 | / | 193) | = | -21.26424866 | ||
| 4 | 35788 | 2394 | - | 2485 | = | -91 | * | (57 | / | 193) | = | -26.87564762 | ||
| 5 | 35789 | 2460 | - | 2528 | = | -68 | * | (64 | / | 193) | = | -22.54922276 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Lydia Jackson Elementary | -71 | ||||||||||||
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 | 36502 | 2399 | - | 2436 | = | -37 | * | (72 | / | 188) | = | -14.17021275 | ||
| 4 | 36503 | 2408 | - | 2485 | = | -77 | * | (65 | / | 188) | = | -26.62234036 | ||
| 5 | 36506 | 2461 | - | 2528 | = | -67 | * | (51 | / | 188) | = | -18.17553187 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Lydia Jackson Elementary | -59 | ||||||||||||
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 | 36487 | 2425 | - | 2436 | = | -11 | * | (68 | / | 191) | = | -3.91623036 | ||
| 4 | 36490 | 2445 | - | 2485 | = | -40 | * | (60 | / | 191) | = | -12.565445 | ||
| 5 | 36491 | 2456 | - | 2528 | = | -72 | * | (63 | / | 191) | = | -23.74869103 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Lydia Jackson Elementary | -40 | ||||||||||||
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 | 36650 | 2420 | - | 2436 | = | -16 | * | (67 | / | 183) | = | -5.85792349 | ||
| 4 | 36651 | 2470 | - | 2485 | = | -15 | * | (63 | / | 183) | = | -5.16393443 | ||
| 5 | 36652 | 2500 | - | 2528 | = | -28 | * | (53 | / | 183) | = | -8.10928961 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Lydia Jackson Elementary | -19 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -72 | -71 | -59 | -40 | -19 | -261.0 | -52.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 13.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -118.2
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 | 92% | 91% | 90% | 88% | 89% |
| 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.
Lydia Jackson Elementary math proficiency
Zero+ meets standard.
81% less $meal
83% less $meal
77% less $meal
81% less $meal
81% 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.