Knob Hill Elementary (Data source)
Source data for Knob Hill 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 | 2340363 | 2443 | - | 2436 | = | 7 | * | (143 | / | 421) | = | 2.37767221 | ||
| 4 | 2340366 | 2479 | - | 2485 | = | -6 | * | (134 | / | 421) | = | -1.90973872 | ||
| 5 | 2340367 | 2507 | - | 2528 | = | -21 | * | (144 | / | 421) | = | -7.18289786 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Knob Hill Elementary | -7 | ||||||||||||
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 | 71524 | 2443 | - | 2436 | = | 7 | * | (148 | / | 423) | = | 2.44917257 | ||
| 4 | 71526 | 2509 | - | 2485 | = | 24 | * | (143 | / | 423) | = | 8.11347516 | ||
| 5 | 71527 | 2522 | - | 2528 | = | -6 | * | (132 | / | 423) | = | -1.87234042 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Knob Hill Elementary | 9 | ||||||||||||
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 | 73417 | 2437 | - | 2436 | = | 1 | * | (112 | / | 389) | = | 0.28791774 | ||
| 4 | 73418 | 2472 | - | 2485 | = | -13 | * | (137 | / | 389) | = | -4.57840616 | ||
| 5 | 73420 | 2519 | - | 2528 | = | -9 | * | (140 | / | 389) | = | -3.23907455 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Knob Hill Elementary | -8 | ||||||||||||
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 | 73556 | 2446 | - | 2436 | = | 10 | * | (141 | / | 388) | = | 3.63402061 | ||
| 4 | 73558 | 2480 | - | 2485 | = | -5 | * | (115 | / | 388) | = | -1.48195876 | ||
| 5 | 73560 | 2502 | - | 2528 | = | -26 | * | (132 | / | 388) | = | -8.84536081 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Knob Hill Elementary | -7 | ||||||||||||
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 | 74017 | 2463 | - | 2436 | = | 27 | * | (114 | / | 370) | = | 8.31891892 | ||
| 4 | 74018 | 2501 | - | 2485 | = | 16 | * | (138 | / | 370) | = | 5.96756755 | ||
| 5 | 74019 | 2507 | - | 2528 | = | -21 | * | (118 | / | 370) | = | -6.69729728 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Knob Hill Elementary | 8 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -7 | 9 | -8 | -7 | 8 | -5.0 | -1.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 23.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -25.0
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 | 46% | 39% | 41% | 44% | 43% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Marcos Unified school district | County of San Diego
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.
Knob Hill Elementary math proficiency
Zero+ meets standard.
34% less $meal
28% less $meal
30% less $meal
37% less $meal
32% 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.