Tustin Ranch Elementary (Data source)
Source data for Tustin Ranch 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 | 1571615 | 2459 | - | 2436 | = | 23 | * | (117 | / | 352) | = | 7.64488635 | ||
| 4 | 1571618 | 2496 | - | 2485 | = | 11 | * | (108 | / | 352) | = | 3.37499999 | ||
| 5 | 1571619 | 2509 | - | 2528 | = | -19 | * | (127 | / | 352) | = | -6.85511363 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Tustin Ranch Elementary | 4 | ||||||||||||
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 | 49190 | 2444 | - | 2436 | = | 8 | * | (123 | / | 354) | = | 2.77966102 | ||
| 4 | 49193 | 2503 | - | 2485 | = | 18 | * | (120 | / | 354) | = | 6.1016949 | ||
| 5 | 49195 | 2526 | - | 2528 | = | -2 | * | (111 | / | 354) | = | -0.62711864 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Tustin Ranch Elementary | 8 | ||||||||||||
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 | 50532 | 2448 | - | 2436 | = | 12 | * | (115 | / | 359) | = | 3.84401113 | ||
| 4 | 50534 | 2480 | - | 2485 | = | -5 | * | (116 | / | 359) | = | -1.61559889 | ||
| 5 | 50536 | 2528 | - | 2528 | = | 0 | * | (128 | / | 359) | = | 0.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Tustin Ranch Elementary | 2 | ||||||||||||
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 | 50555 | 2441 | - | 2436 | = | 5 | * | (101 | / | 341) | = | 1.48093842 | ||
| 4 | 50557 | 2501 | - | 2485 | = | 16 | * | (123 | / | 341) | = | 5.77126099 | ||
| 5 | 50559 | 2527 | - | 2528 | = | -1 | * | (117 | / | 341) | = | -0.3431085 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Tustin Ranch Elementary | 7 | ||||||||||||
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 | 50755 | 2457 | - | 2436 | = | 21 | * | (93 | / | 320) | = | 6.103125 | ||
| 4 | 50756 | 2487 | - | 2485 | = | 2 | * | (101 | / | 320) | = | 0.63125 | ||
| 5 | 50757 | 2531 | - | 2528 | = | 3 | * | (126 | / | 320) | = | 1.18125 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Tustin Ranch Elementary | 8 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 4 | 8 | 2 | 7 | 8 | 29.0 | 5.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 11.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -0.2
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 | 24% | 28% | 29% | 29% | 35% |
| 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.
Tustin Ranch Elementary math proficiency
Zero+ meets standard.
18% less $meal
20% less $meal
22% less $meal
24% less $meal
30% 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.