Christa McAuliffe Elementary (Data source)
Source data for Christa McAuliffe 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 | 3121749 | 2404 | - | 2436 | = | -32 | * | (129 | / | 367) | = | -11.24795638 | ||
| 4 | 3121750 | 2446 | - | 2485 | = | -39 | * | (100 | / | 367) | = | -10.626703 | ||
| 5 | 3121753 | 2483 | - | 2528 | = | -45 | * | (138 | / | 367) | = | -16.92098091 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Christa McAuliffe Elementary | -39 | ||||||||||||
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 | 96293 | 2377 | - | 2436 | = | -59 | * | (117 | / | 346) | = | -19.95086705 | ||
| 4 | 96295 | 2438 | - | 2485 | = | -47 | * | (130 | / | 346) | = | -17.65895952 | ||
| 5 | 96297 | 2466 | - | 2528 | = | -62 | * | (99 | / | 346) | = | -17.73988435 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Christa McAuliffe 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 | 99079 | 2380 | - | 2436 | = | -56 | * | (118 | / | 365) | = | -18.10410958 | ||
| 4 | 99082 | 2414 | - | 2485 | = | -71 | * | (123 | / | 365) | = | -23.92602737 | ||
| 5 | 99083 | 2453 | - | 2528 | = | -75 | * | (124 | / | 365) | = | -25.47945203 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Christa McAuliffe Elementary | -68 | ||||||||||||
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 | 99234 | 2385 | - | 2436 | = | -51 | * | (127 | / | 379) | = | -17.08970975 | ||
| 4 | 99237 | 2413 | - | 2485 | = | -72 | * | (129 | / | 379) | = | -24.5065963 | ||
| 5 | 99238 | 2435 | - | 2528 | = | -93 | * | (123 | / | 379) | = | -30.18205799 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Christa McAuliffe 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 | 99901 | 2401 | - | 2436 | = | -35 | * | (113 | / | 364) | = | -10.8653846 | ||
| 4 | 99902 | 2432 | - | 2485 | = | -53 | * | (119 | / | 364) | = | -17.32692303 | ||
| 5 | 99903 | 2449 | - | 2528 | = | -79 | * | (132 | / | 364) | = | -28.6483516 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Christa McAuliffe Elementary | -57 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -39 | -55 | -68 | -72 | -57 | -291.0 | -58.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -22.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -94.2
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% | 70% | 61% | 65% | 54% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Oxnard school district | County of Ventura
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.
Christa McAuliffe Elementary math proficiency
Zero+ meets standard.
51% less $meal
57% less $meal
55% less $meal
58% less $meal
48% 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.