Wilson Elementary (Data source)
Source data for Wilson 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 | 1028395 | 2391 | - | 2436 | = | -45 | * | (103 | / | 387) | = | -11.97674415 | ||
| 4 | 1028398 | 2428 | - | 2485 | = | -57 | * | (102 | / | 387) | = | -15.02325579 | ||
| 5 | 1028399 | 2423 | - | 2528 | = | -105 | * | (101 | / | 387) | = | -27.40310076 | ||
| 6 | 1028402 | 2457 | - | 2552 | = | -95 | * | (81 | / | 387) | = | -19.88372088 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Wilson Elementary | -74 | ||||||||||||
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 | 32298 | 2384 | - | 2436 | = | -52 | * | (91 | / | 380) | = | -12.45263157 | ||
| 4 | 32301 | 2446 | - | 2485 | = | -39 | * | (101 | / | 380) | = | -10.36578945 | ||
| 5 | 32302 | 2441 | - | 2528 | = | -87 | * | (97 | / | 380) | = | -22.20789466 | ||
| 6 | 32304 | 2441 | - | 2552 | = | -111 | * | (91 | / | 380) | = | -26.58157892 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Wilson Elementary | -72 | ||||||||||||
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 | 32851 | 2395 | - | 2436 | = | -41 | * | (94 | / | 380) | = | -10.14210526 | ||
| 4 | 32853 | 2435 | - | 2485 | = | -50 | * | (95 | / | 380) | = | -12.5 | ||
| 5 | 32855 | 2455 | - | 2528 | = | -73 | * | (91 | / | 380) | = | -17.48157893 | ||
| 6 | 32856 | 2454 | - | 2552 | = | -98 | * | (100 | / | 380) | = | -25.78947361 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Wilson Elementary | -66 | ||||||||||||
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 | 32867 | 2406 | - | 2436 | = | -30 | * | (108 | / | 379) | = | -8.54881266 | ||
| 4 | 32868 | 2440 | - | 2485 | = | -45 | * | (90 | / | 379) | = | -10.68601581 | ||
| 5 | 32871 | 2458 | - | 2528 | = | -70 | * | (93 | / | 379) | = | -17.17678095 | ||
| 6 | 32872 | 2461 | - | 2552 | = | -91 | * | (88 | / | 379) | = | -21.12928754 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Wilson Elementary | -58 | ||||||||||||
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 | 33041 | 2412 | - | 2436 | = | -24 | * | (89 | / | 373) | = | -5.72654155 | ||
| 4 | 33042 | 2452 | - | 2485 | = | -33 | * | (98 | / | 373) | = | -8.67024127 | ||
| 5 | 33043 | 2478 | - | 2528 | = | -50 | * | (89 | / | 373) | = | -11.9302949 | ||
| 6 | 33044 | 2452 | - | 2552 | = | -100 | * | (97 | / | 373) | = | -26.0053619 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Wilson Elementary | -52 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -74 | -72 | -66 | -58 | -52 | -322.0 | -64.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -37.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -91.4
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 | 97% | 95% | 91% | 94% | 94% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lynwood Unified school district | County of Los Angeles
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.
Wilson Elementary math proficiency
Zero+ meets standard.
90% less $meal
89% less $meal
84% less $meal
87% less $meal
85% 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.