Merritt Trace Elementary (Data source)
Source data for Merritt Trace 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 | 2710074 | 2406 | - | 2436 | = | -30 | * | (176 | / | 478) | = | -11.04602508 | ||
| 4 | 2710075 | 2443 | - | 2485 | = | -42 | * | (148 | / | 478) | = | -13.00418406 | ||
| 5 | 2710078 | 2457 | - | 2528 | = | -71 | * | (154 | / | 478) | = | -22.87447697 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Merritt Trace Elementary | -47 | ||||||||||||
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 | 82516 | 2398 | - | 2436 | = | -38 | * | (158 | / | 478) | = | -12.56066945 | ||
| 4 | 82518 | 2451 | - | 2485 | = | -34 | * | (173 | / | 478) | = | -12.30543932 | ||
| 5 | 82520 | 2476 | - | 2528 | = | -52 | * | (147 | / | 478) | = | -15.99163176 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Merritt Trace Elementary | -41 | ||||||||||||
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 | 84809 | 2407 | - | 2436 | = | -29 | * | (176 | / | 493) | = | -10.35294116 | ||
| 4 | 84811 | 2447 | - | 2485 | = | -38 | * | (151 | / | 493) | = | -11.63894522 | ||
| 5 | 84812 | 2468 | - | 2528 | = | -60 | * | (166 | / | 493) | = | -20.2028397 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Merritt Trace Elementary | -42 | ||||||||||||
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 | 85025 | 2420 | - | 2436 | = | -16 | * | (148 | / | 469) | = | -5.0490405 | ||
| 4 | 85026 | 2440 | - | 2485 | = | -45 | * | (167 | / | 469) | = | -16.02345416 | ||
| 5 | 85029 | 2467 | - | 2528 | = | -61 | * | (154 | / | 469) | = | -20.02985069 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Merritt Trace Elementary | -41 | ||||||||||||
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 | 85618 | 2405 | - | 2436 | = | -31 | * | (128 | / | 440) | = | -9.01818179 | ||
| 4 | 85619 | 2459 | - | 2485 | = | -26 | * | (147 | / | 440) | = | -8.68636363 | ||
| 5 | 85620 | 2454 | - | 2528 | = | -74 | * | (165 | / | 440) | = | -27.75 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Merritt Trace Elementary | -45 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -47 | -41 | -42 | -41 | -45 | -216.0 | -43.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -37.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -49.2
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 | 55% | 56% | 55% | 58% | 51% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Jose Unified school district | County of Santa Clara
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.
Merritt Trace Elementary math proficiency
Zero+ meets standard.
47% less $meal
50% less $meal
45% less $meal
52% less $meal
45% 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.