Davis Middle (Data source)
Source data for Davis 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 | 1168501 | 2445 | - | 2552 | = | -107 | * | (263 | / | 836) | = | -33.66148321 | ||
| 7 | 1168502 | 2440 | - | 2567 | = | -127 | * | (291 | / | 836) | = | -44.20693775 | ||
| 8 | 1168505 | 2437 | - | 2586 | = | -149 | * | (282 | / | 836) | = | -50.26076553 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Davis Middle | -128 | ||||||||||||
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 | 36406 | 2429 | - | 2552 | = | -123 | * | (147 | / | 690) | = | -26.20434779 | ||
| 7 | 36407 | 2454 | - | 2567 | = | -113 | * | (243 | / | 690) | = | -39.79565217 | ||
| 8 | 36410 | 2440 | - | 2586 | = | -146 | * | (300 | / | 690) | = | -63.47826077 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Davis Middle | -129 | ||||||||||||
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 | 37169 | 2419 | - | 2552 | = | -133 | * | (154 | / | 594) | = | -34.48148145 | ||
| 7 | 37172 | 2439 | - | 2567 | = | -128 | * | (192 | / | 594) | = | -41.37373734 | ||
| 8 | 37174 | 2440 | - | 2586 | = | -146 | * | (248 | / | 594) | = | -60.95622888 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Davis Middle | -137 | ||||||||||||
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 | 37120 | 2436 | - | 2552 | = | -116 | * | (140 | / | 561) | = | -28.94830657 | ||
| 7 | 37122 | 2434 | - | 2567 | = | -133 | * | (197 | / | 561) | = | -46.70409979 | ||
| 8 | 37124 | 2442 | - | 2586 | = | -144 | * | (224 | / | 561) | = | -57.49732613 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Davis Middle | -133 | ||||||||||||
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 | 37320 | 2441 | - | 2552 | = | -111 | * | (111 | / | 515) | = | -23.92427178 | ||
| 7 | 37321 | 2433 | - | 2567 | = | -134 | * | (205 | / | 515) | = | -53.33980577 | ||
| 8 | 37322 | 2445 | - | 2586 | = | -141 | * | (199 | / | 515) | = | -54.48349501 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Davis Middle | -132 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -128 | -129 | -137 | -133 | -132 | -659.0 | -131.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -122.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -140.8
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 | 83% | 91% | 90% | 92% | 85% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Compton Unified school district | County of Los Angeles
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.
Davis Middle math proficiency
Zero+ meets standard.
80% less $meal
88% less $meal
86% less $meal
88% 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.
Intermediate/Middle Schools (Public) schools in Compton Unified (7)
| Bunche Middle | Davis Middle | Enterprise Middle |
| Roosevelt Middle | Walton Middle | Whaley Middle |
| Willowbrook Middle |