Old Mill Elementary (Data source)
Source data for Old Mill 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 | 1250244 | 2505 | - | 2436 | = | 69 | * | (59 | / | 175) | = | 23.26285713 | ||
| 4 | 1250247 | 2535 | - | 2485 | = | 50 | * | (58 | / | 175) | = | 16.57142855 | ||
| 5 | 1250248 | 2577 | - | 2528 | = | 49 | * | (58 | / | 175) | = | 16.23999998 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Old Mill Elementary | 56 | ||||||||||||
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 | 38983 | 2520 | - | 2436 | = | 84 | * | (57 | / | 169) | = | 28.3313609 | ||
| 4 | 38985 | 2566 | - | 2485 | = | 81 | * | (57 | / | 169) | = | 27.31952659 | ||
| 5 | 38986 | 2588 | - | 2528 | = | 60 | * | (55 | / | 169) | = | 19.52662716 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Old Mill Elementary | 75 | ||||||||||||
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 | 39955 | 2504 | - | 2436 | = | 68 | * | (57 | / | 169) | = | 22.93491121 | ||
| 4 | 39957 | 2577 | - | 2485 | = | 92 | * | (57 | / | 169) | = | 31.02958575 | ||
| 5 | 39959 | 2585 | - | 2528 | = | 57 | * | (55 | / | 169) | = | 18.5502958 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Old Mill Elementary | 73 | ||||||||||||
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 | 39983 | 2529 | - | 2436 | = | 93 | * | (57 | / | 162) | = | 32.72222214 | ||
| 4 | 39984 | 2579 | - | 2485 | = | 94 | * | (49 | / | 162) | = | 28.43209869 | ||
| 5 | 39987 | 2579 | - | 2528 | = | 51 | * | (56 | / | 162) | = | 17.62962961 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Old Mill Elementary | 79 | ||||||||||||
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 | 40136 | 2501 | - | 2436 | = | 65 | * | (43 | / | 142) | = | 19.68309857 | ||
| 4 | 40137 | 2585 | - | 2485 | = | 100 | * | (51 | / | 142) | = | 35.9154929 | ||
| 5 | 40138 | 2595 | - | 2528 | = | 67 | * | (48 | / | 142) | = | 22.64788732 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Old Mill Elementary | 78 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 56 | 75 | 73 | 79 | 78 | 361.0 | 72.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 99.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 45.2
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 | 2% | 1% | 2% | 2% | 2% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Mill Valley Elementary school district | County of Marin
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.
Old Mill Elementary math proficiency
Zero+ meets standard.
2% less $meal
1% less $meal
2% less $meal
2% less $meal
2% 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.
Elementary School (Public) schools in Mill Valley Elementary (5)
| Edna Maguire Elementary | Old Mill Elementary | Park Elementary |
| Strawberry Point Elementary | Tamalpais Valley Elementary |