Curtner Elementary (Data source)
Source data for Curtner 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 | 2735825 | 2475 | - | 2436 | = | 39 | * | (106 | / | 398) | = | 10.38693466 | ||
| 4 | 2735826 | 2530 | - | 2485 | = | 45 | * | (99 | / | 398) | = | 11.19346731 | ||
| 5 | 2735828 | 2557 | - | 2528 | = | 29 | * | (93 | / | 398) | = | 6.77638189 | ||
| 6 | 2735831 | 2606 | - | 2552 | = | 54 | * | (100 | / | 398) | = | 13.56783917 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Curtner Elementary | 42 | ||||||||||||
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 | 83172 | 2496 | - | 2436 | = | 60 | * | (101 | / | 399) | = | 15.18796992 | ||
| 4 | 83174 | 2533 | - | 2485 | = | 48 | * | (112 | / | 399) | = | 13.47368419 | ||
| 5 | 83177 | 2563 | - | 2528 | = | 35 | * | (99 | / | 399) | = | 8.6842105 | ||
| 6 | 83179 | 2616 | - | 2552 | = | 64 | * | (87 | / | 399) | = | 13.95488717 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Curtner Elementary | 51 | ||||||||||||
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 | 85509 | 2501 | - | 2436 | = | 65 | * | (108 | / | 433) | = | 16.21247108 | ||
| 4 | 85510 | 2514 | - | 2485 | = | 29 | * | (107 | / | 433) | = | 7.16628173 | ||
| 5 | 85512 | 2556 | - | 2528 | = | 28 | * | (115 | / | 433) | = | 7.43648959 | ||
| 6 | 85514 | 2612 | - | 2552 | = | 60 | * | (103 | / | 433) | = | 14.27251728 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Curtner Elementary | 45 | ||||||||||||
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 | 85729 | 2509 | - | 2436 | = | 73 | * | (89 | / | 423) | = | 15.35933804 | ||
| 4 | 85731 | 2538 | - | 2485 | = | 53 | * | (111 | / | 423) | = | 13.90780139 | ||
| 5 | 85733 | 2547 | - | 2528 | = | 19 | * | (111 | / | 423) | = | 4.98581559 | ||
| 6 | 85735 | 2621 | - | 2552 | = | 69 | * | (112 | / | 423) | = | 18.2695035 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Curtner Elementary | 53 | ||||||||||||
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 | 86323 | 2514 | - | 2436 | = | 78 | * | (120 | / | 441) | = | 21.22448975 | ||
| 4 | 86324 | 2547 | - | 2485 | = | 62 | * | (95 | / | 441) | = | 13.35600906 | ||
| 5 | 86325 | 2562 | - | 2528 | = | 34 | * | (111 | / | 441) | = | 8.55782312 | ||
| 6 | 86326 | 2593 | - | 2552 | = | 41 | * | (115 | / | 441) | = | 10.69160998 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Curtner Elementary | 54 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 42 | 51 | 45 | 53 | 54 | 245.0 | 49.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 64.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 34.0
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 | 21% | 20% | 17% | 21% | 19% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Milpitas 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.
Curtner Elementary math proficiency
Zero+ meets standard.
15% less $meal
15% less $meal
13% less $meal
19% less $meal
16% 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.