Dallas Ranch Middle (Data source)
Source data for Dallas Ranch 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 | 177897 | 2491 | - | 2552 | = | -61 | * | (387 | / | 1161) | = | -20.33333331 | ||
| 7 | 177898 | 2492 | - | 2567 | = | -75 | * | (345 | / | 1161) | = | -22.28682165 | ||
| 8 | 177901 | 2480 | - | 2586 | = | -106 | * | (429 | / | 1161) | = | -39.16795856 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Dallas Ranch Middle | -82 | ||||||||||||
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 | 5358 | 2496 | - | 2552 | = | -56 | * | (314 | / | 953) | = | -18.4512067 | ||
| 7 | 5360 | 2502 | - | 2567 | = | -65 | * | (330 | / | 953) | = | -22.50786987 | ||
| 8 | 5361 | 2514 | - | 2586 | = | -72 | * | (309 | / | 953) | = | -23.34522557 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Dallas Ranch Middle | -64 | ||||||||||||
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 | 5474 | 2490 | - | 2552 | = | -62 | * | (315 | / | 1017) | = | -19.20353981 | ||
| 7 | 5475 | 2478 | - | 2567 | = | -89 | * | (334 | / | 1017) | = | -29.22910517 | ||
| 8 | 5478 | 2490 | - | 2586 | = | -96 | * | (368 | / | 1017) | = | -34.7374631 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Dallas Ranch Middle | -83 | ||||||||||||
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 | 5470 | 2461 | - | 2552 | = | -91 | * | (311 | / | 939) | = | -30.13951004 | ||
| 7 | 5472 | 2481 | - | 2567 | = | -86 | * | (308 | / | 939) | = | -28.20873263 | ||
| 8 | 5474 | 2495 | - | 2586 | = | -91 | * | (320 | / | 939) | = | -31.01171455 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Dallas Ranch Middle | -89 | ||||||||||||
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 | 5525 | 2454 | - | 2552 | = | -98 | * | (292 | / | 903) | = | -31.68992239 | ||
| 7 | 5526 | 2455 | - | 2567 | = | -112 | * | (307 | / | 903) | = | -38.07751931 | ||
| 8 | 5527 | 2476 | - | 2586 | = | -110 | * | (304 | / | 903) | = | -37.03211512 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Dallas Ranch Middle | -107 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -82 | -64 | -83 | -89 | -107 | -425.0 | -85.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -40.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -130.0
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 | 56% | 59% | 57% | 63% | 61% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Antioch Unified school district | County of Contra Costa
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.
Dallas Ranch Middle math proficiency
Zero+ meets standard.
46% less $meal
49% less $meal
49% less $meal
57% less $meal
54% 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 Antioch Unified (4)
| Antioch Middle | Black Diamond Middle | Dallas Ranch Middle |
| Park Middle |