Collett Elementary (Data source)
Source data for Collett 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 | 1642322 | 2404 | - | 2436 | = | -32 | * | (113 | / | 313) | = | -11.55271565 | ||
| 4 | 1642324 | 2451 | - | 2485 | = | -34 | * | (101 | / | 313) | = | -10.971246 | ||
| 5 | 1642326 | 2454 | - | 2528 | = | -74 | * | (99 | / | 313) | = | -23.40575075 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Collett Elementary | -46 | ||||||||||||
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 | 51342 | 2365 | - | 2436 | = | -71 | * | (99 | / | 305) | = | -23.04590157 | ||
| 4 | 51344 | 2448 | - | 2485 | = | -37 | * | (112 | / | 305) | = | -13.58688522 | ||
| 5 | 51346 | 2463 | - | 2528 | = | -65 | * | (94 | / | 305) | = | -20.03278687 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Collett Elementary | -57 | ||||||||||||
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 | 52826 | 2413 | - | 2436 | = | -23 | * | (86 | / | 301) | = | -6.57142856 | ||
| 4 | 52827 | 2436 | - | 2485 | = | -49 | * | (100 | / | 301) | = | -16.27906974 | ||
| 5 | 52829 | 2464 | - | 2528 | = | -64 | * | (115 | / | 301) | = | -24.4518272 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Collett Elementary | -47 | ||||||||||||
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 | 52916 | 2400 | - | 2436 | = | -36 | * | (87 | / | 270) | = | -11.59999999 | ||
| 4 | 52919 | 2443 | - | 2485 | = | -42 | * | (88 | / | 270) | = | -13.68888885 | ||
| 5 | 52920 | 2454 | - | 2528 | = | -74 | * | (95 | / | 270) | = | -26.03703697 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Collett Elementary | -51 | ||||||||||||
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 | 53147 | 2409 | - | 2436 | = | -27 | * | (102 | / | 268) | = | -10.27611938 | ||
| 4 | 53148 | 2435 | - | 2485 | = | -50 | * | (82 | / | 268) | = | -15.29850745 | ||
| 5 | 53149 | 2468 | - | 2528 | = | -60 | * | (84 | / | 268) | = | -18.8059701 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Collett Elementary | -44 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -46 | -57 | -47 | -51 | -44 | -245.0 | -49.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -34.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -64.0
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 | 86% | 85% | 88% | 89% | 85% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Alvord Unified school district | County of Riverside
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.
Collett Elementary math proficiency
Zero+ meets standard.
74% less $meal
69% less $meal
70% less $meal
75% less $meal
74% 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.