Neal Dow Elementary (Data source)
Source data for Neal Dow 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 | 139543 | 2435 | - | 2436 | = | -1 | * | (54 | / | 228) | = | -0.23684211 | ||
| 4 | 139544 | 2454 | - | 2485 | = | -31 | * | (60 | / | 228) | = | -8.15789471 | ||
| 5 | 139547 | 2472 | - | 2528 | = | -56 | * | (60 | / | 228) | = | -14.73684206 | ||
| 6 | 139548 | 2511 | - | 2552 | = | -41 | * | (54 | / | 228) | = | -9.71052631 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Neal Dow Elementary | -33 | ||||||||||||
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 | 4041 | 2419 | - | 2436 | = | -17 | * | (54 | / | 226) | = | -4.0619469 | ||
| 4 | 4044 | 2466 | - | 2485 | = | -19 | * | (58 | / | 226) | = | -4.87610619 | ||
| 5 | 4045 | 2485 | - | 2528 | = | -43 | * | (60 | / | 226) | = | -11.41592918 | ||
| 6 | 4048 | 2483 | - | 2552 | = | -69 | * | (54 | / | 226) | = | -16.48672566 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Neal Dow 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 | 4126 | 2421 | - | 2436 | = | -15 | * | (56 | / | 172) | = | -4.88372093 | ||
| 4 | 4128 | 2463 | - | 2485 | = | -22 | * | (56 | / | 172) | = | -7.16279069 | ||
| 5 | 4129 | 2486 | - | 2528 | = | -42 | * | (60 | / | 172) | = | -14.65116278 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Neal Dow Elementary | -27 | ||||||||||||
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 | 4127 | 2434 | - | 2436 | = | -2 | * | (56 | / | 159) | = | -0.70440251 | ||
| 4 | 4130 | 2447 | - | 2485 | = | -38 | * | (50 | / | 159) | = | -11.9496855 | ||
| 5 | 4131 | 2514 | - | 2528 | = | -14 | * | (53 | / | 159) | = | -4.66666666 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Neal Dow Elementary | -17 | ||||||||||||
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 | 4181 | 2421 | - | 2436 | = | -15 | * | (67 | / | 187) | = | -5.37433155 | ||
| 4 | 4182 | 2440 | - | 2485 | = | -45 | * | (61 | / | 187) | = | -14.67914436 | ||
| 5 | 4183 | 2466 | - | 2528 | = | -62 | * | (59 | / | 187) | = | -19.5614973 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Neal Dow Elementary | -40 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -33 | -37 | -27 | -17 | -40 | -154.0 | -30.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -3.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -57.8
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 | 53% | 52% | 52% | 56% | 56% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Chico Unified school district | County of Butte
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.
Neal Dow Elementary math proficiency
Zero+ meets standard.
45% less $meal
43% less $meal
43% less $meal
50% less $meal
50% 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.