Tetzlaff (Martin B.) Middle (Data source)
Source data for Tetzlaff (Martin B.) 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 |
||
| 7 | 609202 | 2535 | - | 2567 | = | -32 | * | (289 | / | 589) | = | -15.70118845 | ||
| 8 | 609205 | 2560 | - | 2586 | = | -26 | * | (300 | / | 589) | = | -13.24278436 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Tetzlaff (Martin B.) Middle | -29 | ||||||||||||
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 |
||
| 7 | 19522 | 2555 | - | 2567 | = | -12 | * | (336 | / | 631) | = | -6.38985737 | ||
| 8 | 19523 | 2548 | - | 2586 | = | -38 | * | (295 | / | 631) | = | -17.76545163 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Tetzlaff (Martin B.) Middle | -24 | ||||||||||||
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 |
||
| 7 | 19816 | 2555 | - | 2567 | = | -12 | * | (299 | / | 645) | = | -5.56279069 | ||
| 8 | 19817 | 2590 | - | 2586 | = | 4 | * | (346 | / | 645) | = | 2.14573643 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Tetzlaff (Martin B.) Middle | -3 | ||||||||||||
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 |
||
| 7 | 19814 | 2558 | - | 2567 | = | -9 | * | (305 | / | 621) | = | -4.42028985 | ||
| 8 | 19816 | 2586 | - | 2586 | = | 0 | * | (316 | / | 621) | = | 0.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Tetzlaff (Martin B.) Middle | -4 | ||||||||||||
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 |
||
| 7 | 19997 | 2574 | - | 2567 | = | 7 | * | (322 | / | 633) | = | 3.56082148 | ||
| 8 | 19998 | 2584 | - | 2586 | = | -2 | * | (311 | / | 633) | = | -0.98262243 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Tetzlaff (Martin B.) Middle | 3 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -29 | -24 | -3 | -4 | 3 | -57.0 | -11.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 30.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -53.4
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 | 41% | 42% | 40% | 45% | 41% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
ABC Unified school district | County of Los Angeles
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.
Tetzlaff (Martin B.) Middle math proficiency
Zero+ meets standard.
29% less $meal
31% less $meal
29% less $meal
35% less $meal
33% 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 ABC Unified (5)
| Carmenita Middle | Fedde (Pharis F.) Middle | Haskell (Pliny Fisk) Middle |
| Ross (Faye) Middle | Tetzlaff (Martin B.) Middle |