Longfellow Arts and Technology Middle (Data source)
Source data for Longfellow Arts and Technology Middle
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 |
||
| 6 | 19279 | 2503 | - | 2552 | = | -49 | * | (171 | / | 486) | = | -17.2407407 | ||
| 7 | 19282 | 2545 | - | 2567 | = | -22 | * | (168 | / | 486) | = | -7.60493826 | ||
| 8 | 19283 | 2597 | - | 2586 | = | 11 | * | (147 | / | 486) | = | 3.32716049 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Longfellow Arts and Technology Middle | -22 | ||||||||||||
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 |
||
| 6 | 530 | 2525 | - | 2552 | = | -27 | * | (146 | / | 455) | = | -8.66373624 | ||
| 7 | 532 | 2541 | - | 2567 | = | -26 | * | (151 | / | 455) | = | -8.62857141 | ||
| 8 | 533 | 2570 | - | 2586 | = | -16 | * | (158 | / | 455) | = | -5.55604395 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Longfellow Arts and Technology Middle | -23 | ||||||||||||
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 |
||
| 6 | 551 | 2504 | - | 2552 | = | -48 | * | (160 | / | 479) | = | -16.0334029 | ||
| 7 | 554 | 2541 | - | 2567 | = | -26 | * | (152 | / | 479) | = | -8.25052192 | ||
| 8 | 556 | 2572 | - | 2586 | = | -14 | * | (167 | / | 479) | = | -4.88100208 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Longfellow Arts and Technology Middle | -29 | ||||||||||||
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 |
||
| 6 | 575 | 2502 | - | 2552 | = | -50 | * | (164 | / | 490) | = | -16.73469385 | ||
| 7 | 577 | 2526 | - | 2567 | = | -41 | * | (166 | / | 490) | = | -13.88979591 | ||
| 8 | 579 | 2590 | - | 2586 | = | 4 | * | (160 | / | 490) | = | 1.30612245 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Longfellow Arts and Technology Middle | -29 | ||||||||||||
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 |
||
| 6 | 603 | 2494 | - | 2552 | = | -58 | * | (154 | / | 454) | = | -19.67400878 | ||
| 7 | 604 | 2538 | - | 2567 | = | -29 | * | (146 | / | 454) | = | -9.32599119 | ||
| 8 | 605 | 2553 | - | 2586 | = | -33 | * | (154 | / | 454) | = | -11.19383258 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Longfellow Arts and Technology Middle | -40 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -22 | -23 | -29 | -29 | -40 | -143.0 | -28.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -7.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -49.6
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 | 51% | 50% | 59% | 56% | 60% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Berkeley Unified school district | County of Alameda
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.
Longfellow Arts and Technology Middle math proficiency
Zero+ meets standard.
44% less $meal
44% less $meal
53% less $meal
49% less $meal
50% 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.
Intermediate/Middle Schools (Public) schools in Berkeley Unified (3)
| Longfellow Arts and Technology Middle | Martin Luther King Middle | Willard Middle |