Lawrence Elementary (Data source)
Source data for Lawrence 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 | 2409847 | 2371 | - | 2436 | = | -65 | * | (75 | / | 272) | = | -17.92279411 | ||
4 | 2409848 | 2411 | - | 2485 | = | -74 | * | (76 | / | 272) | = | -20.67647054 | ||
5 | 2409851 | 2422 | - | 2528 | = | -106 | * | (61 | / | 272) | = | -23.77205873 | ||
6 | 2409852 | 2465 | - | 2552 | = | -87 | * | (60 | / | 272) | = | -19.19117645 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Lawrence Elementary | -82 |
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 | 73596 | 2386 | - | 2436 | = | -50 | * | (76 | / | 271) | = | -14.0221402 | ||
4 | 73598 | 2416 | - | 2485 | = | -69 | * | (64 | / | 271) | = | -16.29520291 | ||
5 | 73600 | 2433 | - | 2528 | = | -95 | * | (71 | / | 271) | = | -24.88929881 | ||
6 | 73601 | 2457 | - | 2552 | = | -95 | * | (60 | / | 271) | = | -21.03321033 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Lawrence Elementary | -76 |
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 | 75573 | 2396 | - | 2436 | = | -40 | * | (62 | / | 286) | = | -8.67132864 | ||
4 | 75575 | 2409 | - | 2485 | = | -76 | * | (77 | / | 286) | = | -20.46153844 | ||
5 | 75576 | 2458 | - | 2528 | = | -70 | * | (63 | / | 286) | = | -15.4195804 | ||
6 | 75579 | 2454 | - | 2552 | = | -98 | * | (84 | / | 286) | = | -28.78321671 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Lawrence Elementary | -73 |
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 | 75759 | 2400 | - | 2436 | = | -36 | * | (73 | / | 254) | = | -10.34645666 | ||
4 | 75761 | 2444 | - | 2485 | = | -41 | * | (55 | / | 254) | = | -8.87795275 | ||
5 | 75763 | 2430 | - | 2528 | = | -98 | * | (66 | / | 254) | = | -25.46456686 | ||
6 | 75765 | 2458 | - | 2552 | = | -94 | * | (60 | / | 254) | = | -22.20472437 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Lawrence Elementary | -67 |
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 | 76282 | 2387 | - | 2436 | = | -49 | * | (71 | / | 256) | = | -13.58984375 | ||
4 | 76283 | 2441 | - | 2485 | = | -44 | * | (71 | / | 256) | = | -12.203125 | ||
5 | 76284 | 2473 | - | 2528 | = | -55 | * | (51 | / | 256) | = | -10.95703125 | ||
6 | 76285 | 2457 | - | 2552 | = | -95 | * | (63 | / | 256) | = | -23.37890625 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Lawrence Elementary | -60 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-82 | -76 | -73 | -67 | -60 | -358.0 | -71.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -47.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -95.6
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 | 94% | 96% | 96% | 95% | 89% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lodi Unified school district County of San Joaquin
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Lawrence Elementary math proficiency
Zero+ meets standard.
88% less $meal
91% less $meal
90% less $meal
91% less $meal
86% 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.