Nipomo Elementary (Data source)
Source data for Nipomo 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 | 2487208 | 2402 | - | 2436 | = | -34 | * | (58 | / | 253) | = | -7.79446637 | ||
| 4 | 2487209 | 2455 | - | 2485 | = | -30 | * | (58 | / | 253) | = | -6.87747033 | ||
| 5 | 2487212 | 2465 | - | 2528 | = | -63 | * | (78 | / | 253) | = | -19.42292489 | ||
| 6 | 2487213 | 2521 | - | 2552 | = | -31 | * | (59 | / | 253) | = | -7.22924901 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Nipomo Elementary | -41 | ||||||||||||
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 | 75828 | 2408 | - | 2436 | = | -28 | * | (62 | / | 270) | = | -6.42962961 | ||
| 4 | 75830 | 2437 | - | 2485 | = | -48 | * | (59 | / | 270) | = | -10.48888886 | ||
| 5 | 75832 | 2483 | - | 2528 | = | -45 | * | (69 | / | 270) | = | -11.49999998 | ||
| 6 | 75834 | 2507 | - | 2552 | = | -45 | * | (80 | / | 270) | = | -13.33333332 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Nipomo Elementary | -42 | ||||||||||||
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 | 77860 | 2423 | - | 2436 | = | -13 | * | (50 | / | 249) | = | -2.61044176 | ||
| 4 | 77862 | 2438 | - | 2485 | = | -47 | * | (67 | / | 249) | = | -12.64658634 | ||
| 5 | 77865 | 2452 | - | 2528 | = | -76 | * | (59 | / | 249) | = | -18.00803212 | ||
| 6 | 77867 | 2495 | - | 2552 | = | -57 | * | (73 | / | 249) | = | -16.71084333 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Nipomo Elementary | -50 | ||||||||||||
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 | 78022 | 2419 | - | 2436 | = | -17 | * | (56 | / | 231) | = | -4.12121211 | ||
| 4 | 78023 | 2462 | - | 2485 | = | -23 | * | (51 | / | 231) | = | -5.07792206 | ||
| 5 | 78026 | 2462 | - | 2528 | = | -66 | * | (63 | / | 231) | = | -17.99999995 | ||
| 6 | 78027 | 2495 | - | 2552 | = | -57 | * | (61 | / | 231) | = | -15.05194805 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Nipomo Elementary | -42 | ||||||||||||
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 | 78554 | 2423 | - | 2436 | = | -13 | * | (58 | / | 220) | = | -3.42727272 | ||
| 4 | 78555 | 2464 | - | 2485 | = | -21 | * | (51 | / | 220) | = | -4.8681818 | ||
| 5 | 78556 | 2473 | - | 2528 | = | -55 | * | (49 | / | 220) | = | -12.24999996 | ||
| 6 | 78557 | 2479 | - | 2552 | = | -73 | * | (62 | / | 220) | = | -20.57272721 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Nipomo Elementary | -41 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -41 | -42 | -50 | -42 | -41 | -216.0 | -43.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -34.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -52.2
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 | 76% | 75% | 73% | 71% | 73% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lucia Mar Unified school district | County of San Luis Obispo
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.
Nipomo Elementary math proficiency
Zero+ meets standard.
59% less $meal
63% less $meal
59% less $meal
64% less $meal
65% 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.