Jackson Elementary (Data source)
Source data for 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 | 1082832 | 2362 | - | 2436 | = | -74 | * | (43 | / | 149) | = | -21.3557047 | ||
| 4 | 1082835 | 2434 | - | 2485 | = | -51 | * | (65 | / | 149) | = | -22.24832211 | ||
| 5 | 1082836 | 2451 | - | 2528 | = | -77 | * | (41 | / | 149) | = | -21.18791945 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Jackson 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 | 33935 | 2383 | - | 2436 | = | -53 | * | (66 | / | 184) | = | -19.01086956 | ||
| 4 | 33938 | 2406 | - | 2485 | = | -79 | * | (52 | / | 184) | = | -22.32608691 | ||
| 5 | 33940 | 2453 | - | 2528 | = | -75 | * | (66 | / | 184) | = | -26.9021739 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Jackson 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 | 34531 | 2392 | - | 2436 | = | -44 | * | (88 | / | 199) | = | -19.45728642 | ||
| 4 | 34533 | 2432 | - | 2485 | = | -53 | * | (63 | / | 199) | = | -16.77889444 | ||
| 5 | 34536 | 2421 | - | 2528 | = | -107 | * | (48 | / | 199) | = | -25.80904521 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Jackson Elementary | -62 | ||||||||||||
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 | 34534 | 2429 | - | 2436 | = | -7 | * | (99 | / | 249) | = | -2.78313253 | ||
| 4 | 34537 | 2429 | - | 2485 | = | -56 | * | (87 | / | 249) | = | -19.56626504 | ||
| 5 | 34538 | 2425 | - | 2528 | = | -103 | * | (63 | / | 249) | = | -26.06024094 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Jackson Elementary | -48 | ||||||||||||
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 | 34706 | 2435 | - | 2436 | = | -1 | * | (113 | / | 292) | = | -0.3869863 | ||
| 4 | 34707 | 2476 | - | 2485 | = | -9 | * | (97 | / | 292) | = | -2.98972602 | ||
| 5 | 34708 | 2430 | - | 2528 | = | -98 | * | (82 | / | 292) | = | -27.52054787 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Jackson Elementary | -31 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -65 | -68 | -62 | -48 | -31 | -274.0 | -54.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -9.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -99.8
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 | 88% | 80% | 74% | 69% | 60% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Pasadena Unified 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.
Jackson Elementary math proficiency
Zero+ meets standard.
79% less $meal
71% less $meal
65% less $meal
63% less $meal
54% 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.