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 | 1516535 | 2375 | - | 2436 | = | -61 | * | (90 | / | 317) | = | -17.31861193 | ||
| 4 | 1516536 | 2441 | - | 2485 | = | -44 | * | (86 | / | 317) | = | -11.9369085 | ||
| 5 | 1516539 | 2469 | - | 2528 | = | -59 | * | (76 | / | 317) | = | -14.14511041 | ||
| 6 | 1516540 | 2502 | - | 2552 | = | -50 | * | (65 | / | 317) | = | -10.2523659 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Taft Elementary | -54 | ||||||||||||
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 | 47526 | 2371 | - | 2436 | = | -65 | * | (62 | / | 312) | = | -12.91666662 | ||
| 4 | 47528 | 2432 | - | 2485 | = | -53 | * | (93 | / | 312) | = | -15.79807692 | ||
| 5 | 47531 | 2475 | - | 2528 | = | -53 | * | (84 | / | 312) | = | -14.26923076 | ||
| 6 | 47533 | 2486 | - | 2552 | = | -66 | * | (73 | / | 312) | = | -15.44230763 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Taft Elementary | -58 | ||||||||||||
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 | 48820 | 2382 | - | 2436 | = | -54 | * | (93 | / | 350) | = | -14.34857139 | ||
| 4 | 48822 | 2429 | - | 2485 | = | -56 | * | (68 | / | 350) | = | -10.87999998 | ||
| 5 | 48825 | 2460 | - | 2528 | = | -68 | * | (94 | / | 350) | = | -18.2628571 | ||
| 6 | 48826 | 2480 | - | 2552 | = | -72 | * | (95 | / | 350) | = | -19.54285711 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Taft Elementary | -63 | ||||||||||||
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 | 48843 | 2369 | - | 2436 | = | -67 | * | (97 | / | 345) | = | -18.83768114 | ||
| 4 | 48844 | 2441 | - | 2485 | = | -44 | * | (84 | / | 345) | = | -10.71304344 | ||
| 5 | 48847 | 2446 | - | 2528 | = | -82 | * | (70 | / | 345) | = | -16.6376811 | ||
| 6 | 48848 | 2473 | - | 2552 | = | -79 | * | (94 | / | 345) | = | -21.52463767 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Taft Elementary | -68 | ||||||||||||
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 | 49042 | 2405 | - | 2436 | = | -31 | * | (61 | / | 308) | = | -6.13961039 | ||
| 4 | 49043 | 2450 | - | 2485 | = | -35 | * | (92 | / | 308) | = | -10.45454543 | ||
| 5 | 49044 | 2464 | - | 2528 | = | -64 | * | (88 | / | 308) | = | -18.28571424 | ||
| 6 | 49045 | 2472 | - | 2552 | = | -80 | * | (67 | / | 308) | = | -17.40259736 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Taft Elementary | -52 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -54 | -58 | -63 | -68 | -52 | -295.0 | -59.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -41.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -77.0
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 | 87% | 84% | 83% | 85% | 89% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Orange 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
76% less $meal
76% less $meal
80% less $meal
81% 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.