Barrett Elementary (Data source)
Source data for Barrett 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 | 2681040 | 2397 | - | 2436 | = | -39 | * | (85 | / | 338) | = | -9.80769227 | ||
| 4 | 2681041 | 2430 | - | 2485 | = | -55 | * | (93 | / | 338) | = | -15.13313604 | ||
| 5 | 2681043 | 2431 | - | 2528 | = | -97 | * | (96 | / | 338) | = | -27.5502958 | ||
| 6 | 2681046 | 2502 | - | 2552 | = | -50 | * | (64 | / | 338) | = | -9.4674556 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Barrett Elementary | -62 | ||||||||||||
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 | 81701 | 2426 | - | 2436 | = | -10 | * | (81 | / | 358) | = | -2.26256983 | ||
| 4 | 81703 | 2416 | - | 2485 | = | -69 | * | (88 | / | 358) | = | -16.9608938 | ||
| 5 | 81704 | 2470 | - | 2528 | = | -58 | * | (96 | / | 358) | = | -15.55307259 | ||
| 6 | 81707 | 2466 | - | 2552 | = | -86 | * | (93 | / | 358) | = | -22.3407821 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Barrett Elementary | -57 | ||||||||||||
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 | 83972 | 2399 | - | 2436 | = | -37 | * | (80 | / | 240) | = | -12.33333332 | ||
| 4 | 83974 | 2435 | - | 2485 | = | -50 | * | (77 | / | 240) | = | -16.04166665 | ||
| 5 | 83976 | 2463 | - | 2528 | = | -65 | * | (83 | / | 240) | = | -22.47916665 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Barrett Elementary | -51 | ||||||||||||
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 | 84195 | 2410 | - | 2436 | = | -26 | * | (73 | / | 225) | = | -8.43555554 | ||
| 4 | 84197 | 2430 | - | 2485 | = | -55 | * | (79 | / | 225) | = | -19.31111111 | ||
| 5 | 84199 | 2493 | - | 2528 | = | -35 | * | (73 | / | 225) | = | -11.35555554 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Barrett Elementary | -39 | ||||||||||||
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 | 84810 | 2387 | - | 2436 | = | -49 | * | (73 | / | 218) | = | -16.40825687 | ||
| 4 | 84811 | 2431 | - | 2485 | = | -54 | * | (70 | / | 218) | = | -17.33944952 | ||
| 5 | 84812 | 2465 | - | 2528 | = | -63 | * | (75 | / | 218) | = | -21.67431191 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Barrett Elementary | -55 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -62 | -57 | -51 | -39 | -55 | -264.0 | -52.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -28.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -76.8
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% | 56% | 53% | 57% | 54% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Morgan Hill Unified school district | County of Santa Clara
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.
Barrett Elementary math proficiency
Zero+ meets standard.
45% less $meal
47% less $meal
46% less $meal
53% 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.