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 |
2326608 |
2408 |
- |
2436 |
= |
-28 |
* |
(1501 |
/ |
9538) |
= |
-4.40637448 |
4 |
2326609 |
2453 |
- |
2485 |
= |
-32 |
* |
(1487 |
/ |
9538) |
= |
-4.98888653 |
5 |
2326612 |
2482 |
- |
2528 |
= |
-46 |
* |
(1452 |
/ |
9538) |
= |
-7.00272591 |
6 |
2326613 |
2492 |
- |
2552 |
= |
-60 |
* |
(1364 |
/ |
9538) |
= |
-8.58041514 |
7 |
2326616 |
2527 |
- |
2567 |
= |
-40 |
* |
(1307 |
/ |
9538) |
= |
-5.48123296 |
8 |
2326617 |
2541 |
- |
2586 |
= |
-45 |
* |
(1328 |
/ |
9538) |
= |
-6.26546444 |
11 |
2326620 |
2563 |
- |
2628 |
= |
-65 |
* |
(1099 |
/ |
9538) |
= |
-7.48951561 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Oceanside Unified
|
-44 |
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 |
71157 |
2417 |
- |
2436 |
= |
-19 |
* |
(1508 |
/ |
9603) |
= |
-2.98365094 |
4 |
71160 |
2453 |
- |
2485 |
= |
-32 |
* |
(1483 |
/ |
9603) |
= |
-4.94178902 |
5 |
71161 |
2483 |
- |
2528 |
= |
-45 |
* |
(1430 |
/ |
9603) |
= |
-6.70103091 |
6 |
71164 |
2488 |
- |
2552 |
= |
-64 |
* |
(1391 |
/ |
9603) |
= |
-9.27043629 |
7 |
71166 |
2528 |
- |
2567 |
= |
-39 |
* |
(1375 |
/ |
9603) |
= |
-5.58419242 |
8 |
71168 |
2545 |
- |
2586 |
= |
-41 |
* |
(1283 |
/ |
9603) |
= |
-5.47776736 |
11 |
71170 |
2581 |
- |
2628 |
= |
-47 |
* |
(1133 |
/ |
9603) |
= |
-5.54524626 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Oceanside Unified
|
-41 |
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 |
73020 |
2423 |
- |
2436 |
= |
-13 |
* |
(1404 |
/ |
9314) |
= |
-1.95963066 |
4 |
73022 |
2452 |
- |
2485 |
= |
-33 |
* |
(1433 |
/ |
9314) |
= |
-5.0771956 |
5 |
73025 |
2476 |
- |
2528 |
= |
-52 |
* |
(1420 |
/ |
9314) |
= |
-7.92785053 |
6 |
73026 |
2488 |
- |
2552 |
= |
-64 |
* |
(1368 |
/ |
9314) |
= |
-9.40004294 |
7 |
73029 |
2522 |
- |
2567 |
= |
-45 |
* |
(1302 |
/ |
9314) |
= |
-6.29053038 |
8 |
73030 |
2553 |
- |
2586 |
= |
-33 |
* |
(1305 |
/ |
9314) |
= |
-4.62368475 |
11 |
73033 |
2572 |
- |
2628 |
= |
-56 |
* |
(1082 |
/ |
9314) |
= |
-6.50547559 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Oceanside Unified
|
-42 |
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 |
73161 |
2426 |
- |
2436 |
= |
-10 |
* |
(1321 |
/ |
9139) |
= |
-1.44545355 |
4 |
73164 |
2460 |
- |
2485 |
= |
-25 |
* |
(1319 |
/ |
9139) |
= |
-3.6081628 |
5 |
73165 |
2480 |
- |
2528 |
= |
-48 |
* |
(1383 |
/ |
9139) |
= |
-7.26381442 |
6 |
73168 |
2495 |
- |
2552 |
= |
-57 |
* |
(1285 |
/ |
9139) |
= |
-8.014553 |
7 |
73169 |
2520 |
- |
2567 |
= |
-47 |
* |
(1342 |
/ |
9139) |
= |
-6.90163035 |
8 |
73172 |
2542 |
- |
2586 |
= |
-44 |
* |
(1270 |
/ |
9139) |
= |
-6.1144545 |
11 |
73173 |
2556 |
- |
2628 |
= |
-72 |
* |
(1219 |
/ |
9139) |
= |
-9.60367651 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Oceanside Unified
|
-43 |
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 |
73623 |
2433 |
- |
2436 |
= |
-3 |
* |
(1385 |
/ |
8965) |
= |
-0.46346905 |
4 |
73624 |
2462 |
- |
2485 |
= |
-23 |
* |
(1294 |
/ |
8965) |
= |
-3.31979921 |
5 |
73625 |
2481 |
- |
2528 |
= |
-47 |
* |
(1298 |
/ |
8965) |
= |
-6.80490797 |
6 |
73626 |
2496 |
- |
2552 |
= |
-56 |
* |
(1292 |
/ |
8965) |
= |
-8.07049634 |
7 |
73627 |
2522 |
- |
2567 |
= |
-45 |
* |
(1254 |
/ |
8965) |
= |
-6.2944785 |
8 |
73628 |
2551 |
- |
2586 |
= |
-35 |
* |
(1310 |
/ |
8965) |
= |
-5.11433349 |
11 |
73629 |
2541 |
- |
2628 |
= |
-87 |
* |
(1132 |
/ |
8965) |
= |
-10.9853876 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Oceanside Unified
|
-41 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-44
|
-41
|
-42
|
-43
|
-41
|
-211.0 |
-42.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -39.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -45.2
For the lines, you have the data necessary to plot the chart.