San Marcos Elementary (Data source)
Source data for San Marcos 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 | 2339101 | 2373 | - | 2436 | = | -63 | * | (187 | / | 467) | = | -25.2269807 | ||
| 4 | 2339104 | 2416 | - | 2485 | = | -69 | * | (149 | / | 467) | = | -22.01498924 | ||
| 5 | 2339105 | 2433 | - | 2528 | = | -95 | * | (131 | / | 467) | = | -26.64882221 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for San Marcos 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 | 71489 | 2386 | - | 2436 | = | -50 | * | (146 | / | 473) | = | -15.4334038 | ||
| 4 | 71492 | 2428 | - | 2485 | = | -57 | * | (180 | / | 473) | = | -21.69133187 | ||
| 5 | 71494 | 2451 | - | 2528 | = | -77 | * | (147 | / | 473) | = | -23.93023256 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for San Marcos Elementary | -61 | ||||||||||||
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 | 73385 | 2387 | - | 2436 | = | -49 | * | (143 | / | 460) | = | -15.23260869 | ||
| 4 | 73386 | 2431 | - | 2485 | = | -54 | * | (141 | / | 460) | = | -16.55217391 | ||
| 5 | 73389 | 2462 | - | 2528 | = | -66 | * | (176 | / | 460) | = | -25.25217387 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for San Marcos Elementary | -57 | ||||||||||||
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 | 73523 | 2387 | - | 2436 | = | -49 | * | (111 | / | 391) | = | -13.91048593 | ||
| 4 | 73526 | 2431 | - | 2485 | = | -54 | * | (139 | / | 391) | = | -19.19693093 | ||
| 5 | 73527 | 2452 | - | 2528 | = | -76 | * | (141 | / | 391) | = | -27.40664956 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for San Marcos Elementary | -61 | ||||||||||||
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 | 73985 | 2416 | - | 2436 | = | -20 | * | (118 | / | 368) | = | -6.41304346 | ||
| 4 | 73986 | 2461 | - | 2485 | = | -24 | * | (108 | / | 368) | = | -7.04347824 | ||
| 5 | 73987 | 2473 | - | 2528 | = | -55 | * | (142 | / | 368) | = | -21.22282608 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for San Marcos Elementary | -35 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -74 | -61 | -57 | -61 | -35 | -288.0 | -57.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -15.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -99.6
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 | 86% | 79% | 37% | 60% | 78% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Marcos Unified school district | County of San Diego
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.
San Marcos Elementary math proficiency
Zero+ meets standard.
77% less $meal
72% less $meal
37% less $meal
60% less $meal
71% 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.