Muirlands Middle (Data source)
Source data for Muirlands Middle
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 |
||
| 6 | 2267444 | 2600 | - | 2552 | = | 48 | * | (355 | / | 1022) | = | 16.67318981 | ||
| 7 | 2267445 | 2559 | - | 2567 | = | -8 | * | (332 | / | 1022) | = | -2.59882582 | ||
| 8 | 2267448 | 2603 | - | 2586 | = | 17 | * | (335 | / | 1022) | = | 5.57240703 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Muirlands Middle | 20 | ||||||||||||
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 |
||
| 6 | 69556 | 2598 | - | 2552 | = | 46 | * | (350 | / | 1056) | = | 15.24621208 | ||
| 7 | 69557 | 2603 | - | 2567 | = | 36 | * | (369 | / | 1056) | = | 12.57954545 | ||
| 8 | 69559 | 2589 | - | 2586 | = | 3 | * | (337 | / | 1056) | = | 0.95738636 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Muirlands Middle | 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 |
||
| 6 | 71389 | 2602 | - | 2552 | = | 50 | * | (309 | / | 1027) | = | 15.0438169 | ||
| 7 | 71390 | 2597 | - | 2567 | = | 30 | * | (357 | / | 1027) | = | 10.4284323 | ||
| 8 | 71393 | 2601 | - | 2586 | = | 15 | * | (361 | / | 1027) | = | 5.27263875 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Muirlands Middle | 31 | ||||||||||||
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 |
||
| 6 | 71534 | 2607 | - | 2552 | = | 55 | * | (330 | / | 975) | = | 18.61538459 | ||
| 7 | 71536 | 2601 | - | 2567 | = | 34 | * | (301 | / | 975) | = | 10.49641023 | ||
| 8 | 71538 | 2619 | - | 2586 | = | 33 | * | (344 | / | 975) | = | 11.6430769 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Muirlands Middle | 41 | ||||||||||||
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 |
||
| 6 | 72019 | 2607 | - | 2552 | = | 55 | * | (267 | / | 891) | = | 16.48148145 | ||
| 7 | 72020 | 2625 | - | 2567 | = | 58 | * | (325 | / | 891) | = | 21.15600448 | ||
| 8 | 72021 | 2622 | - | 2586 | = | 36 | * | (299 | / | 891) | = | 12.08080807 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Muirlands Middle | 50 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 20 | 29 | 31 | 41 | 50 | 171.0 | 34.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 67.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 1.2
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 | 25% | 26% | 24% | 21% | 20% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Diego Unified school district | County of San Diego
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.
Muirlands Middle math proficiency
Zero+ meets standard.
20% less $meal
21% less $meal
21% less $meal
19% less $meal
16% 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.