Tyrrell Elementary (Data source)
Source data for Tyrrell 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 | 53188 | 2367 | - | 2436 | = | -69 | * | (104 | / | 429) | = | -16.7272727 | ||
| 4 | 53189 | 2430 | - | 2485 | = | -55 | * | (119 | / | 429) | = | -15.25641024 | ||
| 5 | 53192 | 2425 | - | 2528 | = | -103 | * | (101 | / | 429) | = | -24.24941721 | ||
| 6 | 53193 | 2440 | - | 2552 | = | -112 | * | (105 | / | 429) | = | -27.41258733 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Tyrrell Elementary | -84 | ||||||||||||
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 | 1416 | 2389 | - | 2436 | = | -47 | * | (114 | / | 431) | = | -12.43155452 | ||
| 4 | 1417 | 2421 | - | 2485 | = | -64 | * | (98 | / | 431) | = | -14.55220416 | ||
| 5 | 1419 | 2468 | - | 2528 | = | -60 | * | (115 | / | 431) | = | -16.0092807 | ||
| 6 | 1421 | 2441 | - | 2552 | = | -111 | * | (104 | / | 431) | = | -26.78422263 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Tyrrell Elementary | -70 | ||||||||||||
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 | 1454 | 2407 | - | 2436 | = | -29 | * | (92 | / | 407) | = | -6.55528255 | ||
| 4 | 1455 | 2439 | - | 2485 | = | -46 | * | (109 | / | 407) | = | -12.31941028 | ||
| 5 | 1458 | 2468 | - | 2528 | = | -60 | * | (95 | / | 407) | = | -14.00491398 | ||
| 6 | 1460 | 2458 | - | 2552 | = | -94 | * | (111 | / | 407) | = | -25.63636357 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Tyrrell Elementary | -59 | ||||||||||||
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 | 1483 | 2381 | - | 2436 | = | -55 | * | (112 | / | 413) | = | -14.9152542 | ||
| 4 | 1485 | 2446 | - | 2485 | = | -39 | * | (95 | / | 413) | = | -8.97094431 | ||
| 5 | 1487 | 2459 | - | 2528 | = | -69 | * | (108 | / | 413) | = | -18.04358349 | ||
| 6 | 1489 | 2477 | - | 2552 | = | -75 | * | (98 | / | 413) | = | -17.79661013 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Tyrrell 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 | 1510 | 2385 | - | 2436 | = | -51 | * | (88 | / | 385) | = | -11.65714283 | ||
| 4 | 1511 | 2442 | - | 2485 | = | -43 | * | (109 | / | 385) | = | -12.17402597 | ||
| 5 | 1512 | 2483 | - | 2528 | = | -45 | * | (90 | / | 385) | = | -10.51948049 | ||
| 6 | 1513 | 2454 | - | 2552 | = | -98 | * | (98 | / | 385) | = | -24.94545449 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Tyrrell Elementary | -59 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -84 | -70 | -59 | -60 | -59 | -332.0 | -66.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -36.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -96.4
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% | 92% | 88% | 79% | 85% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Hayward Unified school district | County of Alameda
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.
Tyrrell Elementary math proficiency
Zero+ meets standard.
81% less $meal
86% less $meal
78% less $meal
74% less $meal
82% 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.