Chet F. Harritt Elementary (Data source)
Source data for Chet F. Harritt 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 | 2288477 | 2393 | - | 2436 | = | -43 | * | (59 | / | 339) | = | -7.48377577 | ||
| 4 | 2288480 | 2466 | - | 2485 | = | -19 | * | (75 | / | 339) | = | -4.20353982 | ||
| 5 | 2288481 | 2497 | - | 2528 | = | -31 | * | (48 | / | 339) | = | -4.38938052 | ||
| 6 | 2288484 | 2492 | - | 2552 | = | -60 | * | (64 | / | 339) | = | -11.3274336 | ||
| 7 | 2288485 | 2549 | - | 2567 | = | -18 | * | (43 | / | 339) | = | -2.28318583 | ||
| 8 | 2288488 | 2548 | - | 2586 | = | -38 | * | (50 | / | 339) | = | -5.60471975 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Chet F. Harritt Elementary | -35 | ||||||||||||
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 | 70079 | 2420 | - | 2436 | = | -16 | * | (56 | / | 348) | = | -2.57471264 | ||
| 4 | 70082 | 2480 | - | 2485 | = | -5 | * | (55 | / | 348) | = | -0.79022989 | ||
| 5 | 70083 | 2521 | - | 2528 | = | -7 | * | (73 | / | 348) | = | -1.4683908 | ||
| 6 | 70086 | 2521 | - | 2552 | = | -31 | * | (59 | / | 348) | = | -5.2557471 | ||
| 7 | 70087 | 2532 | - | 2567 | = | -35 | * | (63 | / | 348) | = | -6.33620687 | ||
| 8 | 70089 | 2567 | - | 2586 | = | -19 | * | (42 | / | 348) | = | -2.29310345 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Chet F. Harritt Elementary | -19 | ||||||||||||
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 | 71933 | 2434 | - | 2436 | = | -2 | * | (74 | / | 363) | = | -0.4077135 | ||
| 4 | 71935 | 2499 | - | 2485 | = | 14 | * | (54 | / | 363) | = | 2.08264462 | ||
| 5 | 71937 | 2510 | - | 2528 | = | -18 | * | (54 | / | 363) | = | -2.67768594 | ||
| 6 | 71938 | 2533 | - | 2552 | = | -19 | * | (58 | / | 363) | = | -3.03581267 | ||
| 7 | 71940 | 2588 | - | 2567 | = | 21 | * | (59 | / | 363) | = | 3.41322314 | ||
| 8 | 71942 | 2549 | - | 2586 | = | -37 | * | (64 | / | 363) | = | -6.52341594 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Chet F. Harritt Elementary | -7 | ||||||||||||
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 | 72073 | 2463 | - | 2436 | = | 27 | * | (72 | / | 355) | = | 5.47605633 | ||
| 4 | 72075 | 2492 | - | 2485 | = | 7 | * | (72 | / | 355) | = | 1.41971831 | ||
| 5 | 72077 | 2511 | - | 2528 | = | -17 | * | (51 | / | 355) | = | -2.44225351 | ||
| 6 | 72079 | 2507 | - | 2552 | = | -45 | * | (49 | / | 355) | = | -6.21126761 | ||
| 7 | 72081 | 2553 | - | 2567 | = | -14 | * | (55 | / | 355) | = | -2.16901408 | ||
| 8 | 72083 | 2574 | - | 2586 | = | -12 | * | (56 | / | 355) | = | -1.89295774 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Chet F. Harritt Elementary | -6 | ||||||||||||
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 | 72566 | 2455 | - | 2436 | = | 19 | * | (83 | / | 365) | = | 4.32054794 | ||
| 4 | 72567 | 2510 | - | 2485 | = | 25 | * | (68 | / | 365) | = | 4.65753423 | ||
| 5 | 72568 | 2543 | - | 2528 | = | 15 | * | (62 | / | 365) | = | 2.5479452 | ||
| 6 | 72569 | 2503 | - | 2552 | = | -49 | * | (48 | / | 365) | = | -6.4438356 | ||
| 7 | 72570 | 2526 | - | 2567 | = | -41 | * | (48 | / | 365) | = | -5.39178081 | ||
| 8 | 72571 | 2578 | - | 2586 | = | -8 | * | (56 | / | 365) | = | -1.22739726 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Chet F. Harritt Elementary | -2 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -35 | -19 | -7 | -6 | -2 | -69.0 | -13.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 25.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -52.8
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 | 47% | 47% | 47% | 49% | 40% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Santee 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.
Chet F. Harritt Elementary math proficiency
Zero+ meets standard.
32% less $meal
32% less $meal
36% 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.