Guin Foss Elementary (Data source)
Source data for Guin Foss 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 | 1568341 | 2445 | - | 2436 | = | 9 | * | (74 | / | 196) | = | 3.39795918 | ||
| 4 | 1568342 | 2514 | - | 2485 | = | 29 | * | (64 | / | 196) | = | 9.46938775 | ||
| 5 | 1568345 | 2528 | - | 2528 | = | 0 | * | (58 | / | 196) | = | 0.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Guin Foss Elementary | 13 | ||||||||||||
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 | 49094 | 2457 | - | 2436 | = | 21 | * | (63 | / | 197) | = | 6.71573603 | ||
| 4 | 49097 | 2521 | - | 2485 | = | 36 | * | (70 | / | 197) | = | 12.79187816 | ||
| 5 | 49099 | 2558 | - | 2528 | = | 30 | * | (64 | / | 197) | = | 9.74619288 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Guin Foss Elementary | 29 | ||||||||||||
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 | 50437 | 2468 | - | 2436 | = | 32 | * | (85 | / | 221) | = | 12.30769229 | ||
| 4 | 50439 | 2501 | - | 2485 | = | 16 | * | (66 | / | 221) | = | 4.77828053 | ||
| 5 | 50441 | 2556 | - | 2528 | = | 28 | * | (70 | / | 221) | = | 8.86877827 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Guin Foss Elementary | 26 | ||||||||||||
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 | 50459 | 2450 | - | 2436 | = | 14 | * | (64 | / | 202) | = | 4.43564356 | ||
| 4 | 50461 | 2512 | - | 2485 | = | 27 | * | (77 | / | 202) | = | 10.29207919 | ||
| 5 | 50463 | 2551 | - | 2528 | = | 23 | * | (61 | / | 202) | = | 6.94554455 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Guin Foss Elementary | 22 | ||||||||||||
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 | 50659 | 2469 | - | 2436 | = | 33 | * | (65 | / | 204) | = | 10.51470585 | ||
| 4 | 50660 | 2499 | - | 2485 | = | 14 | * | (66 | / | 204) | = | 4.52941175 | ||
| 5 | 50661 | 2543 | - | 2528 | = | 15 | * | (73 | / | 204) | = | 5.36764706 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Guin Foss Elementary | 20 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 13 | 29 | 26 | 22 | 20 | 110.0 | 22.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 40.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 4.0
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 | 41% | 43% | 45% | 47% | 46% |
| 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.
Guin Foss Elementary math proficiency
Zero+ meets standard.
31% less $meal
33% less $meal
35% less $meal
37% less $meal
37% 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.