Gardner Elementary (Data source)
Source data for Gardner 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 | 2708714 | 2344 | - | 2436 | = | -92 | * | (89 | / | 255) | = | -32.10980384 | ||
| 4 | 2708717 | 2410 | - | 2485 | = | -75 | * | (87 | / | 255) | = | -25.58823525 | ||
| 5 | 2708718 | 2421 | - | 2528 | = | -107 | * | (79 | / | 255) | = | -33.14901955 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Gardner Elementary | -91 | ||||||||||||
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 | 82477 | 2354 | - | 2436 | = | -82 | * | (51 | / | 206) | = | -20.30097083 | ||
| 4 | 82478 | 2403 | - | 2485 | = | -82 | * | (81 | / | 206) | = | -32.24271841 | ||
| 5 | 82481 | 2431 | - | 2528 | = | -97 | * | (74 | / | 206) | = | -34.8446601 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Gardner Elementary | -87 | ||||||||||||
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 | 84769 | 2385 | - | 2436 | = | -51 | * | (56 | / | 172) | = | -16.60465115 | ||
| 4 | 84771 | 2426 | - | 2485 | = | -59 | * | (37 | / | 172) | = | -12.69186046 | ||
| 5 | 84772 | 2427 | - | 2528 | = | -101 | * | (79 | / | 172) | = | -46.38953483 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Gardner Elementary | -76 | ||||||||||||
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 | 84984 | 2378 | - | 2436 | = | -58 | * | (61 | / | 153) | = | -23.12418298 | ||
| 4 | 84987 | 2424 | - | 2485 | = | -61 | * | (52 | / | 153) | = | -20.73202614 | ||
| 5 | 84988 | 2442 | - | 2528 | = | -86 | * | (40 | / | 153) | = | -22.48366009 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Gardner Elementary | -66 | ||||||||||||
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 | 85578 | 2382 | - | 2436 | = | -54 | * | (62 | / | 181) | = | -18.49723754 | ||
| 4 | 85579 | 2436 | - | 2485 | = | -49 | * | (68 | / | 181) | = | -18.40883974 | ||
| 5 | 85580 | 2457 | - | 2528 | = | -71 | * | (51 | / | 181) | = | -20.00552481 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Gardner Elementary | -57 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -91 | -87 | -76 | -66 | -57 | -377.0 | -75.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -33.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -117.4
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 | 74% | 72% | 76% | 74% | 60% |
| 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.
Gardner Elementary math proficiency
Zero+ meets standard.
63% less $meal
60% less $meal
62% less $meal
63% less $meal
49% 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.