Freedom Elementary (Data source)
Source data for Freedom 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 | 2749235 | 2391 | - | 2436 | = | -45 | * | (117 | / | 332) | = | -15.85843371 | ||
| 4 | 2749236 | 2415 | - | 2485 | = | -70 | * | (97 | / | 332) | = | -20.45180718 | ||
| 5 | 2749239 | 2460 | - | 2528 | = | -68 | * | (118 | / | 332) | = | -24.16867465 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Freedom Elementary | -60 | ||||||||||||
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 | 83617 | 2402 | - | 2436 | = | -34 | * | (114 | / | 321) | = | -12.07476632 | ||
| 4 | 83618 | 2426 | - | 2485 | = | -59 | * | (106 | / | 321) | = | -19.48286601 | ||
| 5 | 83620 | 2457 | - | 2528 | = | -71 | * | (101 | / | 321) | = | -22.33956382 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Freedom Elementary | -54 | ||||||||||||
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 | 85933 | 2390 | - | 2436 | = | -46 | * | (116 | / | 337) | = | -15.83382785 | ||
| 4 | 85935 | 2437 | - | 2485 | = | -48 | * | (116 | / | 337) | = | -16.52225515 | ||
| 5 | 85936 | 2461 | - | 2528 | = | -67 | * | (105 | / | 337) | = | -20.8753709 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Freedom Elementary | -53 | ||||||||||||
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 | 86164 | 2406 | - | 2436 | = | -30 | * | (86 | / | 322) | = | -8.01242235 | ||
| 4 | 86165 | 2414 | - | 2485 | = | -71 | * | (117 | / | 322) | = | -25.79813663 | ||
| 5 | 86168 | 2457 | - | 2528 | = | -71 | * | (119 | / | 322) | = | -26.23913041 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Freedom Elementary | -60 | ||||||||||||
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 | 86760 | 2416 | - | 2436 | = | -20 | * | (96 | / | 291) | = | -6.59793814 | ||
| 4 | 86761 | 2441 | - | 2485 | = | -44 | * | (84 | / | 291) | = | -12.70103089 | ||
| 5 | 86762 | 2456 | - | 2528 | = | -72 | * | (111 | / | 291) | = | -27.46391746 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Freedom Elementary | -47 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -60 | -54 | -53 | -60 | -47 | -274.0 | -54.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -39.8
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 | 92% | 93% | 47% | 83% | 85% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Pajaro Valley Unified school district | County of Santa Cruz
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.
Freedom Elementary math proficiency
Zero+ meets standard.
86% less $meal
86% less $meal
47% less $meal
78% less $meal
80% 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.