La Mesa Arts Academy (Data source)
Source data for La Mesa Arts Academy
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 |
||
| 4 | 66956 | 2461 | - | 2485 | = | -24 | * | (102 | / | 1026) | = | -2.3859649 | ||
| 5 | 66958 | 2519 | - | 2528 | = | -9 | * | (107 | / | 1026) | = | -0.93859649 | ||
| 6 | 66960 | 2562 | - | 2552 | = | 10 | * | (162 | / | 1026) | = | 1.57894736 | ||
| 7 | 66961 | 2543 | - | 2567 | = | -24 | * | (335 | / | 1026) | = | -7.8362573 | ||
| 8 | 66963 | 2566 | - | 2586 | = | -20 | * | (320 | / | 1026) | = | -6.23781676 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for La Mesa Arts Academy | -16 | ||||||||||||
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 |
||
| 4 | 68766 | 2475 | - | 2485 | = | -10 | * | (97 | / | 1020) | = | -0.95098039 | ||
| 5 | 68768 | 2529 | - | 2528 | = | 1 | * | (126 | / | 1020) | = | 0.12352941 | ||
| 6 | 68770 | 2556 | - | 2552 | = | 4 | * | (152 | / | 1020) | = | 0.59607843 | ||
| 7 | 68773 | 2553 | - | 2567 | = | -14 | * | (338 | / | 1020) | = | -4.63921569 | ||
| 8 | 68774 | 2568 | - | 2586 | = | -18 | * | (307 | / | 1020) | = | -5.41764706 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for La Mesa Arts Academy | -10 | ||||||||||||
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 |
||
| 4 | 68921 | 2472 | - | 2485 | = | -13 | * | (98 | / | 1039) | = | -1.22617901 | ||
| 5 | 68924 | 2521 | - | 2528 | = | -7 | * | (129 | / | 1039) | = | -0.86910491 | ||
| 6 | 68925 | 2544 | - | 2552 | = | -8 | * | (158 | / | 1039) | = | -1.21655438 | ||
| 7 | 68928 | 2561 | - | 2567 | = | -6 | * | (326 | / | 1039) | = | -1.8825794 | ||
| 8 | 68929 | 2573 | - | 2586 | = | -13 | * | (328 | / | 1039) | = | -4.10394609 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for La Mesa Arts Academy | -9 | ||||||||||||
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 |
||
| 4 | 69463 | 2504 | - | 2485 | = | 19 | * | (95 | / | 987) | = | 1.82877405 | ||
| 5 | 69464 | 2538 | - | 2528 | = | 10 | * | (136 | / | 987) | = | 1.37791286 | ||
| 6 | 69465 | 2545 | - | 2552 | = | -7 | * | (136 | / | 987) | = | -0.964539 | ||
| 7 | 69466 | 2566 | - | 2567 | = | -1 | * | (307 | / | 987) | = | -0.31104357 | ||
| 8 | 69467 | 2595 | - | 2586 | = | 9 | * | (313 | / | 987) | = | 2.85410334 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for La Mesa Arts Academy | 5 | ||||||||||||
Last steps
Compute the average
| 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|
| -16 | -10 | -9 | 5 | -30.0 | -7.5 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 16.5
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -31.5
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:
| 2016 | 2017 | 2018 | 2019 | |
|---|---|---|---|---|
| Percent | 45% | 36% | 36% | 35% |
| Data source | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
La Mesa-Spring Valley 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.
La Mesa Arts Academy math proficiency
Zero+ meets standard.
34% less $meal
26% less $meal
28% less $meal
28% 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.