Northwood Elementary (Data source)
Source data for Northwood 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 | 1908825 | 2383 | - | 2436 | = | -53 | * | (56 | / | 220) | = | -13.49090906 | ||
4 | 1908826 | 2436 | - | 2485 | = | -49 | * | (59 | / | 220) | = | -13.14090908 | ||
5 | 1908829 | 2451 | - | 2528 | = | -77 | * | (52 | / | 220) | = | -18.19999997 | ||
6 | 1908830 | 2447 | - | 2552 | = | -105 | * | (53 | / | 220) | = | -25.29545445 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Northwood Elementary | -70 |
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 | 58771 | 2354 | - | 2436 | = | -82 | * | (68 | / | 239) | = | -23.3305439 | ||
4 | 58773 | 2420 | - | 2485 | = | -65 | * | (60 | / | 239) | = | -16.31799163 | ||
5 | 58774 | 2462 | - | 2528 | = | -66 | * | (59 | / | 239) | = | -16.29288698 | ||
6 | 58776 | 2440 | - | 2552 | = | -112 | * | (52 | / | 239) | = | -24.36820075 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Northwood Elementary | -80 |
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 | 60484 | 2348 | - | 2436 | = | -88 | * | (49 | / | 227) | = | -18.99559464 | ||
4 | 60485 | 2411 | - | 2485 | = | -74 | * | (55 | / | 227) | = | -17.92951535 | ||
5 | 60488 | 2420 | - | 2528 | = | -108 | * | (63 | / | 227) | = | -29.97356821 | ||
6 | 60490 | 2483 | - | 2552 | = | -69 | * | (60 | / | 227) | = | -18.23788542 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Northwood Elementary | -85 |
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 | 60609 | 2329 | - | 2436 | = | -107 | * | (58 | / | 235) | = | -26.40851057 | ||
4 | 60611 | 2406 | - | 2485 | = | -79 | * | (59 | / | 235) | = | -19.83404249 | ||
5 | 60613 | 2419 | - | 2528 | = | -109 | * | (59 | / | 235) | = | -27.36595736 | ||
6 | 60615 | 2464 | - | 2552 | = | -88 | * | (59 | / | 235) | = | -22.09361695 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Northwood Elementary | -96 |
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 | 60860 | 2366 | - | 2436 | = | -70 | * | (71 | / | 234) | = | -21.23931621 | ||
4 | 60861 | 2395 | - | 2485 | = | -90 | * | (52 | / | 234) | = | -19.99999998 | ||
5 | 60862 | 2437 | - | 2528 | = | -91 | * | (49 | / | 234) | = | -19.05555552 | ||
6 | 60863 | 2441 | - | 2552 | = | -111 | * | (62 | / | 234) | = | -29.4102563 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Northwood Elementary | -90 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-70 | -80 | -85 | -96 | -90 | -421.0 | -84.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -57.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -111.2
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 | 97% | 97% | 96% | 97% | 97% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Twin Rivers Unified school district County of Sacramento
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.
Northwood Elementary math proficiency
Zero+ meets standard.
93% less $meal
90% less $meal
92% less $meal
92% less $meal
94% 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.