George Cirby Elementary (Data source)
Source data for George Cirby Elementary
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 |
||
| 3 | 1611807 | 2425 | - | 2436 | = | -11 | * | (62 | / | 188) | = | -3.62765957 | ||
| 4 | 1611808 | 2387 | - | 2485 | = | -98 | * | (67 | / | 188) | = | -34.92553184 | ||
| 5 | 1611811 | 2441 | - | 2528 | = | -87 | * | (59 | / | 188) | = | -27.30319147 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for George Cirby Elementary | -66 | ||||||||||||
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 |
||
| 3 | 50423 | 2439 | - | 2436 | = | 3 | * | (57 | / | 184) | = | 0.92934782 | ||
| 4 | 50425 | 2448 | - | 2485 | = | -37 | * | (65 | / | 184) | = | -13.07065215 | ||
| 5 | 50427 | 2454 | - | 2528 | = | -74 | * | (62 | / | 184) | = | -24.93478255 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for George Cirby Elementary | -37 | ||||||||||||
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 |
||
| 3 | 51864 | 2395 | - | 2436 | = | -41 | * | (58 | / | 189) | = | -12.58201055 | ||
| 4 | 51867 | 2448 | - | 2485 | = | -37 | * | (68 | / | 189) | = | -13.31216928 | ||
| 5 | 51869 | 2475 | - | 2528 | = | -53 | * | (63 | / | 189) | = | -17.66666665 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for George Cirby Elementary | -44 | ||||||||||||
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 |
||
| 3 | 51909 | 2391 | - | 2436 | = | -45 | * | (65 | / | 177) | = | -16.52542371 | ||
| 4 | 51910 | 2423 | - | 2485 | = | -62 | * | (52 | / | 177) | = | -18.21468922 | ||
| 5 | 51913 | 2468 | - | 2528 | = | -60 | * | (60 | / | 177) | = | -20.338983 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for George Cirby Elementary | -55 | ||||||||||||
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 |
||
| 3 | 52099 | 2410 | - | 2436 | = | -26 | * | (63 | / | 173) | = | -9.46820807 | ||
| 4 | 52100 | 2424 | - | 2485 | = | -61 | * | (59 | / | 173) | = | -20.80346818 | ||
| 5 | 52101 | 2427 | - | 2528 | = | -101 | * | (51 | / | 173) | = | -29.77456639 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for George Cirby Elementary | -60 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -66 | -37 | -44 | -55 | -60 | -262.0 | -52.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -19.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -85.4
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 | 77% | 73% | 66% | 68% | 73% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Roseville City Elementary school district | County of Placer
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.
George Cirby Elementary math proficiency
Zero+ meets standard.
67% less $meal
62% less $meal
54% less $meal
60% less $meal
62% 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.