Linwood Elementary (Data source)
Source data for Linwood 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 | 3071533 | 2418 | - | 2436 | = | -18 | * | (93 | / | 432) | = | -3.87499999 | ||
| 4 | 3071534 | 2490 | - | 2485 | = | 5 | * | (100 | / | 432) | = | 1.15740741 | ||
| 5 | 3071537 | 2492 | - | 2528 | = | -36 | * | (131 | / | 432) | = | -10.91666664 | ||
| 6 | 3071538 | 2561 | - | 2552 | = | 9 | * | (108 | / | 432) | = | 2.25 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Linwood Elementary | -11 | ||||||||||||
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 | 94552 | 2421 | - | 2436 | = | -15 | * | (98 | / | 433) | = | -3.39491916 | ||
| 4 | 94555 | 2496 | - | 2485 | = | 11 | * | (96 | / | 433) | = | 2.43879907 | ||
| 5 | 94556 | 2524 | - | 2528 | = | -4 | * | (102 | / | 433) | = | -0.94226328 | ||
| 6 | 94558 | 2531 | - | 2552 | = | -21 | * | (137 | / | 433) | = | -6.64434179 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Linwood Elementary | -9 | ||||||||||||
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 | 97333 | 2422 | - | 2436 | = | -14 | * | (74 | / | 367) | = | -2.82288828 | ||
| 4 | 97336 | 2515 | - | 2485 | = | 30 | * | (93 | / | 367) | = | 7.60217982 | ||
| 5 | 97338 | 2518 | - | 2528 | = | -10 | * | (92 | / | 367) | = | -2.50681198 | ||
| 6 | 97340 | 2545 | - | 2552 | = | -7 | * | (108 | / | 367) | = | -2.0599455 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Linwood Elementary | 0 | ||||||||||||
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 | 97512 | 2428 | - | 2436 | = | -8 | * | (84 | / | 348) | = | -1.93103448 | ||
| 4 | 97515 | 2485 | - | 2485 | = | 0 | * | (73 | / | 348) | = | 0.0 | ||
| 5 | 97516 | 2531 | - | 2528 | = | 3 | * | (94 | / | 348) | = | 0.81034483 | ||
| 6 | 97519 | 2544 | - | 2552 | = | -8 | * | (97 | / | 348) | = | -2.22988506 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Linwood Elementary | -3 | ||||||||||||
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 | 98165 | 2450 | - | 2436 | = | 14 | * | (74 | / | 336) | = | 3.08333333 | ||
| 4 | 98166 | 2486 | - | 2485 | = | 1 | * | (86 | / | 336) | = | 0.25595238 | ||
| 5 | 98167 | 2495 | - | 2528 | = | -33 | * | (80 | / | 336) | = | -7.85714285 | ||
| 6 | 98168 | 2574 | - | 2552 | = | 22 | * | (96 | / | 336) | = | 6.28571427 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Linwood Elementary | 2 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -11 | -9 | 0 | -3 | 2 | -21.0 | -4.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 9.75
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -20.25
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 | 55% | 56% | 57% | 63% | 62% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Visalia Unified school district | County of Tulare
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.
Linwood Elementary math proficiency
Zero+ meets standard.
46% less $meal
46% less $meal
46% 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.