Nichols Elementary (Data source)
Source data for Nichols 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 | 2335190 | 2427 | - | 2436 | = | -9 | * | (106 | / | 341) | = | -2.79765395 | ||
| 4 | 2335191 | 2459 | - | 2485 | = | -26 | * | (113 | / | 341) | = | -8.61583577 | ||
| 5 | 2335194 | 2497 | - | 2528 | = | -31 | * | (122 | / | 341) | = | -11.09090906 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Nichols Elementary | -23 | ||||||||||||
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 | 71386 | 2432 | - | 2436 | = | -4 | * | (100 | / | 308) | = | -1.2987013 | ||
| 4 | 71388 | 2473 | - | 2485 | = | -12 | * | (99 | / | 308) | = | -3.85714285 | ||
| 5 | 71389 | 2471 | - | 2528 | = | -57 | * | (109 | / | 308) | = | -20.17207787 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Nichols Elementary | -25 | ||||||||||||
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 | 73260 | 2440 | - | 2436 | = | 4 | * | (114 | / | 328) | = | 1.3902439 | ||
| 4 | 73263 | 2423 | - | 2485 | = | -62 | * | (105 | / | 328) | = | -19.84756096 | ||
| 5 | 73264 | 2457 | - | 2528 | = | -71 | * | (109 | / | 328) | = | -23.59451218 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Nichols Elementary | -42 | ||||||||||||
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 | 73397 | 2439 | - | 2436 | = | 3 | * | (111 | / | 313) | = | 1.06389776 | ||
| 4 | 73400 | 2470 | - | 2485 | = | -15 | * | (106 | / | 313) | = | -5.07987219 | ||
| 5 | 73401 | 2472 | - | 2528 | = | -56 | * | (96 | / | 313) | = | -17.17571884 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Nichols Elementary | -21 | ||||||||||||
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 | 73857 | 2432 | - | 2436 | = | -4 | * | (113 | / | 332) | = | -1.36144578 | ||
| 4 | 73858 | 2459 | - | 2485 | = | -26 | * | (111 | / | 332) | = | -8.69277107 | ||
| 5 | 73859 | 2475 | - | 2528 | = | -53 | * | (108 | / | 332) | = | -17.24096381 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Nichols Elementary | -27 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -23 | -25 | -42 | -21 | -27 | -138.0 | -27.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -3.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -51.6
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 | 59% | 57% | 61% | 64% | 63% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Oceanside Unified 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.
Nichols Elementary math proficiency
Zero+ meets standard.
40% less $meal
43% less $meal
44% less $meal
52% less $meal
53% 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.