Norman Liddell Elementary (Data source)
Source data for Norman Liddell 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 | 379734 | 2412 | - | 2436 | = | -24 | * | (83 | / | 356) | = | -5.59550561 | ||
| 4 | 379735 | 2475 | - | 2485 | = | -10 | * | (82 | / | 356) | = | -2.30337078 | ||
| 5 | 379738 | 2485 | - | 2528 | = | -43 | * | (94 | / | 356) | = | -11.35393255 | ||
| 6 | 379739 | 2496 | - | 2552 | = | -56 | * | (97 | / | 356) | = | -15.25842696 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Norman Liddell Elementary | -35 | ||||||||||||
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 | 11519 | 2404 | - | 2436 | = | -32 | * | (83 | / | 360) | = | -7.37777776 | ||
| 4 | 11522 | 2464 | - | 2485 | = | -21 | * | (85 | / | 360) | = | -4.95833333 | ||
| 5 | 11524 | 2491 | - | 2528 | = | -37 | * | (95 | / | 360) | = | -9.76388886 | ||
| 6 | 11526 | 2532 | - | 2552 | = | -20 | * | (97 | / | 360) | = | -5.38888888 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Norman Liddell Elementary | -27 | ||||||||||||
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 | 11851 | 2432 | - | 2436 | = | -4 | * | (98 | / | 361) | = | -1.08587258 | ||
| 4 | 11854 | 2502 | - | 2485 | = | 17 | * | (81 | / | 361) | = | 3.81440443 | ||
| 5 | 11855 | 2486 | - | 2528 | = | -42 | * | (87 | / | 361) | = | -10.12188362 | ||
| 6 | 11858 | 2535 | - | 2552 | = | -17 | * | (95 | / | 361) | = | -4.4736842 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Norman Liddell Elementary | -12 | ||||||||||||
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 | 11888 | 2457 | - | 2436 | = | 21 | * | (106 | / | 372) | = | 5.98387096 | ||
| 4 | 11889 | 2490 | - | 2485 | = | 5 | * | (100 | / | 372) | = | 1.34408602 | ||
| 5 | 11892 | 2504 | - | 2528 | = | -24 | * | (81 | / | 372) | = | -5.22580644 | ||
| 6 | 11893 | 2515 | - | 2552 | = | -37 | * | (85 | / | 372) | = | -8.45430105 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Norman Liddell Elementary | -6 | ||||||||||||
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 | 11980 | 2452 | - | 2436 | = | 16 | * | (104 | / | 384) | = | 4.33333333 | ||
| 4 | 11981 | 2500 | - | 2485 | = | 15 | * | (99 | / | 384) | = | 3.8671875 | ||
| 5 | 11982 | 2490 | - | 2528 | = | -38 | * | (100 | / | 384) | = | -9.89583331 | ||
| 6 | 11983 | 2531 | - | 2552 | = | -21 | * | (81 | / | 384) | = | -4.4296875 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Norman Liddell Elementary | -6 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -35 | -27 | -12 | -6 | -6 | -86.0 | -17.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 21.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -56.2
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 | 38% | 50% | 38% | 52% | 51% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Central Unified school district | County of Fresno
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.
Norman Liddell Elementary math proficiency
Zero+ meets standard.
31% less $meal
39% less $meal
32% less $meal
46% less $meal
43% 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.