Mann Middle (Data source)
Source data for Mann 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 | 2266468 | 2469 | - | 2552 | = | -83 | * | (235 | / | 726) | = | -26.86639118 | ||
| 7 | 2266469 | 2509 | - | 2567 | = | -58 | * | (238 | / | 726) | = | -19.01377408 | ||
| 8 | 2266472 | 2479 | - | 2586 | = | -107 | * | (253 | / | 726) | = | -37.28787874 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Mann Middle | -83 | ||||||||||||
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 | 69531 | 2495 | - | 2552 | = | -57 | * | (186 | / | 622) | = | -17.04501603 | ||
| 7 | 69533 | 2496 | - | 2567 | = | -71 | * | (205 | / | 622) | = | -23.4003215 | ||
| 8 | 69535 | 2490 | - | 2586 | = | -96 | * | (231 | / | 622) | = | -35.65273306 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Mann Middle | -76 | ||||||||||||
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 | 71365 | 2460 | - | 2552 | = | -92 | * | (244 | / | 713) | = | -31.4838709 | ||
| 7 | 71367 | 2489 | - | 2567 | = | -78 | * | (225 | / | 713) | = | -24.61430572 | ||
| 8 | 71368 | 2471 | - | 2586 | = | -115 | * | (244 | / | 713) | = | -39.35483862 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Mann Middle | -95 | ||||||||||||
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 | 71510 | 2476 | - | 2552 | = | -76 | * | (248 | / | 709) | = | -26.58392098 | ||
| 7 | 71511 | 2483 | - | 2567 | = | -84 | * | (241 | / | 709) | = | -28.55289133 | ||
| 8 | 71514 | 2501 | - | 2586 | = | -85 | * | (220 | / | 709) | = | -26.37517624 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Mann Middle | -82 | ||||||||||||
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 | 71995 | 2471 | - | 2552 | = | -81 | * | (248 | / | 716) | = | -28.05586592 | ||
| 7 | 71996 | 2495 | - | 2567 | = | -72 | * | (233 | / | 716) | = | -23.43016757 | ||
| 8 | 71997 | 2494 | - | 2586 | = | -92 | * | (235 | / | 716) | = | -30.19553068 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Mann Middle | -82 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -83 | -76 | -95 | -82 | -82 | -418.0 | -83.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -65.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -101.6
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 | 93% | 93% | 93% | 94% | 95% |
| 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.
Mann Middle math proficiency
Zero+ meets standard.
86% less $meal
82% less $meal
83% less $meal
86% less $meal
85% 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.