Loma Vista Elementary (Data source)
Source data for Loma Vista 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 | 1569163 | 2425 | - | 2436 | = | -11 | * | (101 | / | 286) | = | -3.88461538 | ||
| 4 | 1569164 | 2470 | - | 2485 | = | -15 | * | (93 | / | 286) | = | -4.87762238 | ||
| 5 | 1569167 | 2479 | - | 2528 | = | -49 | * | (92 | / | 286) | = | -15.76223773 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Loma Vista Elementary | -25 | ||||||||||||
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 | 49118 | 2417 | - | 2436 | = | -19 | * | (98 | / | 277) | = | -6.72202165 | ||
| 4 | 49121 | 2468 | - | 2485 | = | -17 | * | (92 | / | 277) | = | -5.64620937 | ||
| 5 | 49122 | 2528 | - | 2528 | = | 0 | * | (87 | / | 277) | = | 0.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Loma Vista Elementary | -12 | ||||||||||||
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 | 50460 | 2406 | - | 2436 | = | -30 | * | (94 | / | 296) | = | -9.52702701 | ||
| 4 | 50462 | 2474 | - | 2485 | = | -11 | * | (102 | / | 296) | = | -3.79054053 | ||
| 5 | 50465 | 2530 | - | 2528 | = | 2 | * | (100 | / | 296) | = | 0.67567567 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Loma Vista Elementary | -13 | ||||||||||||
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 | 50483 | 2420 | - | 2436 | = | -16 | * | (63 | / | 259) | = | -3.89189189 | ||
| 4 | 50485 | 2460 | - | 2485 | = | -25 | * | (93 | / | 259) | = | -8.97683398 | ||
| 5 | 50487 | 2521 | - | 2528 | = | -7 | * | (103 | / | 259) | = | -2.78378378 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Loma Vista Elementary | -16 | ||||||||||||
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 | 50683 | 2430 | - | 2436 | = | -6 | * | (74 | / | 218) | = | -2.03669725 | ||
| 4 | 50684 | 2477 | - | 2485 | = | -8 | * | (60 | / | 218) | = | -2.20183486 | ||
| 5 | 50685 | 2522 | - | 2528 | = | -6 | * | (84 | / | 218) | = | -2.3119266 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Loma Vista Elementary | -7 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -25 | -12 | -13 | -16 | -7 | -73.0 | -14.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 3.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -32.6
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 | 51% | 52% | 52% | 58% | 58% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Tustin Unified school district | County of Orange
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.
Loma Vista Elementary math proficiency
Zero+ meets standard.
38% less $meal
42% less $meal
41% less $meal
47% less $meal
51% 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.