Rolando Elementary (Data source)
Source data for Rolando 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 | 2186449 | 2421 | - | 2436 | = | -15 | * | (92 | / | 285) | = | -4.84210526 | ||
| 4 | 2186450 | 2477 | - | 2485 | = | -8 | * | (73 | / | 285) | = | -2.0491228 | ||
| 5 | 2186453 | 2480 | - | 2528 | = | -48 | * | (66 | / | 285) | = | -11.11578946 | ||
| 6 | 2186454 | 2522 | - | 2552 | = | -30 | * | (54 | / | 285) | = | -5.68421052 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rolando Elementary | -24 | ||||||||||||
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 | 67138 | 2437 | - | 2436 | = | 1 | * | (91 | / | 295) | = | 0.30847458 | ||
| 4 | 67140 | 2446 | - | 2485 | = | -39 | * | (69 | / | 295) | = | -9.1220339 | ||
| 5 | 67142 | 2501 | - | 2528 | = | -27 | * | (67 | / | 295) | = | -6.13220339 | ||
| 6 | 67143 | 2493 | - | 2552 | = | -59 | * | (68 | / | 295) | = | -13.59999997 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rolando Elementary | -29 | ||||||||||||
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 | 68958 | 2408 | - | 2436 | = | -28 | * | (84 | / | 283) | = | -8.31095404 | ||
| 4 | 68960 | 2460 | - | 2485 | = | -25 | * | (74 | / | 283) | = | -6.53710245 | ||
| 5 | 68963 | 2473 | - | 2528 | = | -55 | * | (56 | / | 283) | = | -10.88339219 | ||
| 6 | 68965 | 2509 | - | 2552 | = | -43 | * | (69 | / | 283) | = | -10.48409892 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rolando Elementary | -36 | ||||||||||||
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 | 69129 | 2414 | - | 2436 | = | -22 | * | (104 | / | 292) | = | -7.83561643 | ||
| 4 | 69131 | 2460 | - | 2485 | = | -25 | * | (64 | / | 292) | = | -5.47945205 | ||
| 5 | 69133 | 2486 | - | 2528 | = | -42 | * | (70 | / | 292) | = | -10.06849313 | ||
| 6 | 69135 | 2498 | - | 2552 | = | -54 | * | (54 | / | 292) | = | -9.98630132 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rolando Elementary | -33 | ||||||||||||
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 | 69668 | 2429 | - | 2436 | = | -7 | * | (78 | / | 271) | = | -2.01476015 | ||
| 4 | 69669 | 2443 | - | 2485 | = | -42 | * | (69 | / | 271) | = | -10.69372693 | ||
| 5 | 69670 | 2476 | - | 2528 | = | -52 | * | (59 | / | 271) | = | -11.3210332 | ||
| 6 | 69671 | 2489 | - | 2552 | = | -63 | * | (65 | / | 271) | = | -15.11070107 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rolando Elementary | -39 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -24 | -29 | -36 | -33 | -39 | -161.0 | -32.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -17.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -47.2
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 | 51% | 54% | 52% | 54% | 53% |
| Data source | 2015 data file | 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.
Rolando Elementary math proficiency
Zero+ meets standard.
40% less $meal
46% less $meal
43% less $meal
48% less $meal
47% 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.