Cadwallader Elementary (Data source)
Source data for Cadwallader 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 | 2646917 | 2468 | - | 2436 | = | 32 | * | (47 | / | 205) | = | 7.33658534 | ||
4 | 2646918 | 2487 | - | 2485 | = | 2 | * | (46 | / | 205) | = | 0.44878049 | ||
5 | 2646921 | 2491 | - | 2528 | = | -37 | * | (50 | / | 205) | = | -9.02439024 | ||
6 | 2646922 | 2560 | - | 2552 | = | 8 | * | (62 | / | 205) | = | 2.41951219 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Cadwallader Elementary | 1 |
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 | 80699 | 2468 | - | 2436 | = | 32 | * | (52 | / | 192) | = | 8.66666666 | ||
4 | 80702 | 2508 | - | 2485 | = | 23 | * | (47 | / | 192) | = | 5.63020832 | ||
5 | 80703 | 2555 | - | 2528 | = | 27 | * | (46 | / | 192) | = | 6.46874999 | ||
6 | 80705 | 2557 | - | 2552 | = | 5 | * | (47 | / | 192) | = | 1.22395833 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Cadwallader Elementary | 22 |
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 | 82929 | 2467 | - | 2436 | = | 31 | * | (54 | / | 198) | = | 8.45454543 | ||
4 | 82930 | 2491 | - | 2485 | = | 6 | * | (49 | / | 198) | = | 1.48484848 | ||
5 | 82932 | 2537 | - | 2528 | = | 9 | * | (51 | / | 198) | = | 2.31818181 | ||
6 | 82935 | 2549 | - | 2552 | = | -3 | * | (44 | / | 198) | = | -0.66666667 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Cadwallader Elementary | 12 |
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 | 83146 | 2483 | - | 2436 | = | 47 | * | (50 | / | 201) | = | 11.69154225 | ||
4 | 83147 | 2499 | - | 2485 | = | 14 | * | (52 | / | 201) | = | 3.62189054 | ||
5 | 83150 | 2530 | - | 2528 | = | 2 | * | (50 | / | 201) | = | 0.49751244 | ||
6 | 83151 | 2543 | - | 2552 | = | -9 | * | (49 | / | 201) | = | -2.19402985 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Cadwallader Elementary | 14 |
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 | 83759 | 2478 | - | 2436 | = | 42 | * | (46 | / | 198) | = | 9.75757574 | ||
4 | 83760 | 2527 | - | 2485 | = | 42 | * | (48 | / | 198) | = | 10.18181816 | ||
5 | 83761 | 2547 | - | 2528 | = | 19 | * | (50 | / | 198) | = | 4.79797979 | ||
6 | 83762 | 2537 | - | 2552 | = | -15 | * | (54 | / | 198) | = | -4.09090908 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Cadwallader Elementary | 21 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
1 | 22 | 12 | 14 | 21 | 70.0 | 14.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 38.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -10.0
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 | 44% | 41% | 38% | 40% | 39% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Evergreen Elementary 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.
Cadwallader Elementary math proficiency
Zero+ meets standard.
35% less $meal
31% less $meal
30% less $meal
31% 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.