Crossroads Elementary (Data source)
Source data for Crossroads 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 | 2958955 | 2421 | - | 2436 | = | -15 | * | (158 | / | 434) | = | -5.46082949 | ||
| 4 | 2958956 | 2445 | - | 2485 | = | -40 | * | (144 | / | 434) | = | -13.2718894 | ||
| 5 | 2958959 | 2492 | - | 2528 | = | -36 | * | (132 | / | 434) | = | -10.94930874 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Crossroads Elementary | -30 | ||||||||||||
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 | 90544 | 2424 | - | 2436 | = | -12 | * | (140 | / | 451) | = | -3.72505543 | ||
| 4 | 90546 | 2465 | - | 2485 | = | -20 | * | (160 | / | 451) | = | -7.09534368 | ||
| 5 | 90548 | 2479 | - | 2528 | = | -49 | * | (151 | / | 451) | = | -16.40576492 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Crossroads Elementary | -27 | ||||||||||||
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 | 93241 | 2424 | - | 2436 | = | -12 | * | (117 | / | 415) | = | -3.38313252 | ||
| 4 | 93243 | 2465 | - | 2485 | = | -20 | * | (144 | / | 415) | = | -6.93975902 | ||
| 5 | 93246 | 2497 | - | 2528 | = | -31 | * | (154 | / | 415) | = | -11.50361445 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Crossroads Elementary | -22 | ||||||||||||
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 | 93443 | 2438 | - | 2436 | = | 2 | * | (146 | / | 429) | = | 0.68065268 | ||
| 4 | 93444 | 2480 | - | 2485 | = | -5 | * | (128 | / | 429) | = | -1.49184149 | ||
| 5 | 93447 | 2503 | - | 2528 | = | -25 | * | (155 | / | 429) | = | -9.03263403 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Crossroads Elementary | -10 | ||||||||||||
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 | 94087 | 2443 | - | 2436 | = | 7 | * | (146 | / | 424) | = | 2.41037735 | ||
| 4 | 94088 | 2488 | - | 2485 | = | 3 | * | (148 | / | 424) | = | 1.04716981 | ||
| 5 | 94089 | 2507 | - | 2528 | = | -21 | * | (130 | / | 424) | = | -6.43867923 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Crossroads Elementary | -3 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -30 | -27 | -22 | -10 | -3 | -92.0 | -18.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 14.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -51.4
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 | 40% | 43% | 40% | 46% | 45% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Sylvan Union Elementary school district | County of Stanislaus
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.
Crossroads Elementary math proficiency
Zero+ meets standard.
30% less $meal
31% less $meal
29% less $meal
36% less $meal
34% 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.