Taft Middle (Data source)
Source data for Taft 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 | 2268389 | 2491 | - | 2552 | = | -61 | * | (163 | / | 462) | = | -21.52164497 | ||
| 7 | 2268392 | 2507 | - | 2567 | = | -60 | * | (152 | / | 462) | = | -19.74025974 | ||
| 8 | 2268393 | 2557 | - | 2586 | = | -29 | * | (147 | / | 462) | = | -9.22727272 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Taft Middle | -50 | ||||||||||||
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 | 69579 | 2491 | - | 2552 | = | -61 | * | (152 | / | 463) | = | -20.0259179 | ||
| 7 | 69581 | 2516 | - | 2567 | = | -51 | * | (162 | / | 463) | = | -17.84449241 | ||
| 8 | 69583 | 2551 | - | 2586 | = | -35 | * | (149 | / | 463) | = | -11.26349889 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Taft Middle | -49 | ||||||||||||
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 | 71412 | 2509 | - | 2552 | = | -43 | * | (159 | / | 447) | = | -15.29530197 | ||
| 7 | 71415 | 2512 | - | 2567 | = | -55 | * | (133 | / | 447) | = | -16.3646532 | ||
| 8 | 71417 | 2505 | - | 2586 | = | -81 | * | (155 | / | 447) | = | -28.08724831 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Taft Middle | -60 | ||||||||||||
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 | 71557 | 2499 | - | 2552 | = | -53 | * | (124 | / | 407) | = | -16.14742011 | ||
| 7 | 71560 | 2516 | - | 2567 | = | -51 | * | (154 | / | 407) | = | -19.29729728 | ||
| 8 | 71561 | 2495 | - | 2586 | = | -91 | * | (129 | / | 407) | = | -28.84275176 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Taft Middle | -64 | ||||||||||||
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 | 72043 | 2501 | - | 2552 | = | -51 | * | (166 | / | 444) | = | -19.06756752 | ||
| 7 | 72044 | 2512 | - | 2567 | = | -55 | * | (136 | / | 444) | = | -16.84684683 | ||
| 8 | 72045 | 2524 | - | 2586 | = | -62 | * | (142 | / | 444) | = | -19.82882878 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Taft Middle | -56 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -50 | -49 | -60 | -64 | -56 | -279.0 | -55.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -37.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -73.8
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 | 67% | 67% | 64% | 63% | 64% |
| 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.
Taft Middle math proficiency
Zero+ meets standard.
47% less $meal
48% less $meal
46% less $meal
49% less $meal
47% 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.