West Oakland Middle (Data source)
Source data for West Oakland 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 | 80040 | 2413 | - | 2552 | = | -139 | * | (73 | / | 222) | = | -45.70720709 | ||
| 7 | 80043 | 2417 | - | 2567 | = | -150 | * | (71 | / | 222) | = | -47.97297285 | ||
| 8 | 80044 | 2438 | - | 2586 | = | -148 | * | (78 | / | 222) | = | -51.99999995 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for West Oakland Middle | -146 | ||||||||||||
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 | 2181 | 2394 | - | 2552 | = | -158 | * | (62 | / | 189) | = | -51.83068782 | ||
| 7 | 2184 | 2423 | - | 2567 | = | -144 | * | (63 | / | 189) | = | -47.99999995 | ||
| 8 | 2185 | 2421 | - | 2586 | = | -165 | * | (64 | / | 189) | = | -55.87301577 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for West Oakland Middle | -156 | ||||||||||||
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 | 2242 | 2417 | - | 2552 | = | -135 | * | (46 | / | 175) | = | -35.48571417 | ||
| 7 | 2244 | 2437 | - | 2567 | = | -130 | * | (63 | / | 175) | = | -46.8 | ||
| 8 | 2245 | 2444 | - | 2586 | = | -142 | * | (66 | / | 175) | = | -53.55428569 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for West Oakland Middle | -136 | ||||||||||||
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 | 2231 | 2404 | - | 2552 | = | -148 | * | (68 | / | 191) | = | -52.69109942 | ||
| 7 | 2233 | 2434 | - | 2567 | = | -133 | * | (54 | / | 191) | = | -37.60209423 | ||
| 8 | 2235 | 2438 | - | 2586 | = | -148 | * | (69 | / | 191) | = | -53.46596851 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for West Oakland Middle | -144 | ||||||||||||
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 | 2241 | 2415 | - | 2552 | = | -137 | * | (72 | / | 187) | = | -52.74866297 | ||
| 7 | 2242 | 2408 | - | 2567 | = | -159 | * | (65 | / | 187) | = | -55.26737954 | ||
| 8 | 2243 | 2443 | - | 2586 | = | -143 | * | (50 | / | 187) | = | -38.2352941 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for West Oakland Middle | -146 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -146 | -156 | -136 | -144 | -146 | -728.0 | -145.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -124.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -166.6
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% | 96% | 98% | 96% | 94% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Oakland Unified school district | County of Alameda
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.
West Oakland Middle math proficiency
Zero+ meets standard.
89% less $meal
92% less $meal
94% less $meal
93% less $meal
91% 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.