Turtle Rock Elementary (Data source)
Source data for Turtle Rock 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 | 1576102 | 2519 | - | 2436 | = | 83 | * | (132 | / | 549) | = | 19.95628411 | ||
| 4 | 1576105 | 2564 | - | 2485 | = | 79 | * | (148 | / | 549) | = | 21.29690342 | ||
| 5 | 1576106 | 2610 | - | 2528 | = | 82 | * | (141 | / | 549) | = | 21.06010928 | ||
| 6 | 1576109 | 2624 | - | 2552 | = | 72 | * | (128 | / | 549) | = | 16.78688518 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Turtle Rock Elementary | 79 | ||||||||||||
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 | 49320 | 2515 | - | 2436 | = | 79 | * | (128 | / | 557) | = | 18.15439853 | ||
| 4 | 49323 | 2564 | - | 2485 | = | 79 | * | (144 | / | 557) | = | 20.42369833 | ||
| 5 | 49325 | 2598 | - | 2528 | = | 70 | * | (140 | / | 557) | = | 17.59425493 | ||
| 6 | 49326 | 2654 | - | 2552 | = | 102 | * | (145 | / | 557) | = | 26.55296222 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Turtle Rock Elementary | 83 | ||||||||||||
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 | 50684 | 2534 | - | 2436 | = | 98 | * | (110 | / | 510) | = | 21.13725485 | ||
| 4 | 50687 | 2581 | - | 2485 | = | 96 | * | (132 | / | 510) | = | 24.84705878 | ||
| 5 | 50689 | 2607 | - | 2528 | = | 79 | * | (133 | / | 510) | = | 20.60196073 | ||
| 6 | 50691 | 2643 | - | 2552 | = | 91 | * | (135 | / | 510) | = | 24.08823526 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Turtle Rock Elementary | 91 | ||||||||||||
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 | 50720 | 2521 | - | 2436 | = | 85 | * | (115 | / | 503) | = | 19.43339955 | ||
| 4 | 50722 | 2583 | - | 2485 | = | 98 | * | (127 | / | 503) | = | 24.74353872 | ||
| 5 | 50724 | 2621 | - | 2528 | = | 93 | * | (133 | / | 503) | = | 24.59045717 | ||
| 6 | 50726 | 2654 | - | 2552 | = | 102 | * | (128 | / | 503) | = | 25.95626242 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Turtle Rock Elementary | 95 | ||||||||||||
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 | 50928 | 2512 | - | 2436 | = | 76 | * | (111 | / | 497) | = | 16.97384304 | ||
| 4 | 50929 | 2584 | - | 2485 | = | 99 | * | (127 | / | 497) | = | 25.2977867 | ||
| 5 | 50930 | 2614 | - | 2528 | = | 86 | * | (124 | / | 497) | = | 21.45674037 | ||
| 6 | 50931 | 2654 | - | 2552 | = | 102 | * | (135 | / | 497) | = | 27.70623736 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Turtle Rock Elementary | 91 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 79 | 83 | 91 | 95 | 91 | 439.0 | 87.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 105.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 69.8
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 | 13% | 13% | 11% | 18% | 16% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Irvine 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.
Turtle Rock Elementary math proficiency
Zero+ meets standard.
10% less $meal
10% less $meal
9% less $meal
17% less $meal
14% 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.