Martin Elementary (Data source)
Source data for Martin 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 | 2562073 | 2401 | - | 2436 | = | -35 | * | (72 | / | 196) | = | -12.85714283 | ||
4 | 2562076 | 2454 | - | 2485 | = | -31 | * | (62 | / | 196) | = | -9.80612243 | ||
5 | 2562077 | 2483 | - | 2528 | = | -45 | * | (62 | / | 196) | = | -14.23469385 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Martin Elementary | -37 |
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 | 78047 | 2416 | - | 2436 | = | -20 | * | (68 | / | 193) | = | -7.04663212 | ||
4 | 78049 | 2452 | - | 2485 | = | -33 | * | (63 | / | 193) | = | -10.77202071 | ||
5 | 78052 | 2511 | - | 2528 | = | -17 | * | (62 | / | 193) | = | -5.46113989 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Martin Elementary | -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 |
||
3 | 80209 | 2406 | - | 2436 | = | -30 | * | (70 | / | 191) | = | -10.99476438 | ||
4 | 80210 | 2453 | - | 2485 | = | -32 | * | (60 | / | 191) | = | -10.052356 | ||
5 | 80213 | 2510 | - | 2528 | = | -18 | * | (61 | / | 191) | = | -5.74869109 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Martin Elementary | -27 |
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 | 80364 | 2398 | - | 2436 | = | -38 | * | (78 | / | 201) | = | -14.74626864 | ||
4 | 80365 | 2454 | - | 2485 | = | -31 | * | (61 | / | 201) | = | -9.4079602 | ||
5 | 80368 | 2490 | - | 2528 | = | -38 | * | (62 | / | 201) | = | -11.72139302 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Martin Elementary | -36 |
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 | 80848 | 2399 | - | 2436 | = | -37 | * | (85 | / | 221) | = | -14.23076921 | ||
4 | 80849 | 2447 | - | 2485 | = | -38 | * | (75 | / | 221) | = | -12.89592757 | ||
5 | 80850 | 2516 | - | 2528 | = | -12 | * | (61 | / | 221) | = | -3.31221719 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Martin Elementary | -30 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-37 | -23 | -27 | -36 | -30 | -153.0 | -30.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -15.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -45.6
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 | 78% | 77% | 78% | 80% | 75% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
South San Francisco Unified school district County of San Mateo
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.
Martin Elementary math proficiency
Zero+ meets standard.
68% less $meal
68% less $meal
66% less $meal
69% less $meal
61% 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.