Taft Elementary (Data source)
Source data for Taft 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 | 1541038 | 2366 | - | 2436 | = | -70 | * | (89 | / | 304) | = | -20.49342099 | ||
| 4 | 1541039 | 2409 | - | 2485 | = | -76 | * | (78 | / | 304) | = | -19.49999997 | ||
| 5 | 1541042 | 2452 | - | 2528 | = | -76 | * | (75 | / | 304) | = | -18.74999998 | ||
| 6 | 1541043 | 2492 | - | 2552 | = | -60 | * | (62 | / | 304) | = | -12.23684208 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Taft Elementary | -71 | ||||||||||||
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 | 48281 | 2385 | - | 2436 | = | -51 | * | (94 | / | 312) | = | -15.3653846 | ||
| 4 | 48282 | 2425 | - | 2485 | = | -60 | * | (80 | / | 312) | = | -15.38461536 | ||
| 5 | 48285 | 2443 | - | 2528 | = | -85 | * | (83 | / | 312) | = | -22.61217949 | ||
| 6 | 48286 | 2505 | - | 2552 | = | -47 | * | (55 | / | 312) | = | -8.2852564 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Taft Elementary | -62 | ||||||||||||
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 | 49609 | 2373 | - | 2436 | = | -63 | * | (82 | / | 293) | = | -17.6313993 | ||
| 4 | 49610 | 2414 | - | 2485 | = | -71 | * | (94 | / | 293) | = | -22.77815695 | ||
| 5 | 49613 | 2427 | - | 2528 | = | -101 | * | (79 | / | 293) | = | -27.23208187 | ||
| 6 | 49615 | 2430 | - | 2552 | = | -122 | * | (38 | / | 293) | = | -15.8225255 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Taft Elementary | -83 | ||||||||||||
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 | 49623 | 2374 | - | 2436 | = | -62 | * | (85 | / | 327) | = | -16.11620789 | ||
| 4 | 49624 | 2407 | - | 2485 | = | -78 | * | (79 | / | 327) | = | -18.84403669 | ||
| 5 | 49627 | 2433 | - | 2528 | = | -95 | * | (95 | / | 327) | = | -27.59938832 | ||
| 6 | 49628 | 2467 | - | 2552 | = | -85 | * | (68 | / | 327) | = | -17.67584095 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Taft Elementary | -80 | ||||||||||||
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 | 49822 | 2376 | - | 2436 | = | -60 | * | (53 | / | 291) | = | -10.92783504 | ||
| 4 | 49823 | 2422 | - | 2485 | = | -63 | * | (85 | / | 291) | = | -18.4020618 | ||
| 5 | 49824 | 2445 | - | 2528 | = | -83 | * | (82 | / | 291) | = | -23.3883161 | ||
| 6 | 49825 | 2475 | - | 2552 | = | -77 | * | (71 | / | 291) | = | -18.78694156 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Taft Elementary | -72 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -71 | -62 | -83 | -80 | -72 | -368.0 | -73.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -49.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -97.6
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 | 81% | 86% | 83% | 78% | 79% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Santa Ana Unified school district | County of Orange
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.
Taft Elementary math proficiency
Zero+ meets standard.
81% less $meal
85% less $meal
77% less $meal
70% less $meal
70% 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.