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 |
3130323 |
2394 |
- |
2436 |
= |
-42 |
* |
(580 |
/ |
3121) |
= |
-7.80519062 |
4 |
3130324 |
2422 |
- |
2485 |
= |
-63 |
* |
(531 |
/ |
3121) |
= |
-10.71867989 |
5 |
3130327 |
2445 |
- |
2528 |
= |
-83 |
* |
(460 |
/ |
3121) |
= |
-12.23325853 |
6 |
3130328 |
2463 |
- |
2552 |
= |
-89 |
* |
(520 |
/ |
3121) |
= |
-14.8285805 |
7 |
3130331 |
2475 |
- |
2567 |
= |
-92 |
* |
(543 |
/ |
3121) |
= |
-16.00640812 |
8 |
3130332 |
2491 |
- |
2586 |
= |
-95 |
* |
(487 |
/ |
3121) |
= |
-14.82377435 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Rio Elementary
|
-76 |
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 |
96523 |
2406 |
- |
2436 |
= |
-30 |
* |
(557 |
/ |
3262) |
= |
-5.12262414 |
4 |
96525 |
2423 |
- |
2485 |
= |
-62 |
* |
(599 |
/ |
3262) |
= |
-11.38503985 |
5 |
96526 |
2449 |
- |
2528 |
= |
-79 |
* |
(544 |
/ |
3262) |
= |
-13.17473939 |
6 |
96529 |
2469 |
- |
2552 |
= |
-83 |
* |
(495 |
/ |
3262) |
= |
-12.5950337 |
7 |
96530 |
2487 |
- |
2567 |
= |
-80 |
* |
(520 |
/ |
3262) |
= |
-12.75291232 |
8 |
96533 |
2492 |
- |
2586 |
= |
-94 |
* |
(547 |
/ |
3262) |
= |
-15.7627222 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Rio Elementary
|
-71 |
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 |
99317 |
2412 |
- |
2436 |
= |
-24 |
* |
(573 |
/ |
3322) |
= |
-4.13967487 |
4 |
99319 |
2438 |
- |
2485 |
= |
-47 |
* |
(562 |
/ |
3322) |
= |
-7.95123417 |
5 |
99322 |
2454 |
- |
2528 |
= |
-74 |
* |
(607 |
/ |
3322) |
= |
-13.52137265 |
6 |
99323 |
2464 |
- |
2552 |
= |
-88 |
* |
(547 |
/ |
3322) |
= |
-14.49006618 |
7 |
99325 |
2478 |
- |
2567 |
= |
-89 |
* |
(508 |
/ |
3322) |
= |
-13.6098735 |
8 |
99328 |
2513 |
- |
2586 |
= |
-73 |
* |
(525 |
/ |
3322) |
= |
-11.5367248 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Rio Elementary
|
-65 |
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 |
99476 |
2414 |
- |
2436 |
= |
-22 |
* |
(546 |
/ |
3347) |
= |
-3.58888556 |
4 |
99479 |
2446 |
- |
2485 |
= |
-39 |
* |
(573 |
/ |
3347) |
= |
-6.67672539 |
5 |
99480 |
2458 |
- |
2528 |
= |
-70 |
* |
(571 |
/ |
3347) |
= |
-11.94203759 |
6 |
99483 |
2463 |
- |
2552 |
= |
-89 |
* |
(594 |
/ |
3347) |
= |
-15.79504031 |
7 |
99484 |
2478 |
- |
2567 |
= |
-89 |
* |
(537 |
/ |
3347) |
= |
-14.27935464 |
8 |
99487 |
2498 |
- |
2586 |
= |
-88 |
* |
(526 |
/ |
3347) |
= |
-13.82969817 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Rio Elementary
|
-66 |
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 |
100140 |
2416 |
- |
2436 |
= |
-20 |
* |
(597 |
/ |
3459) |
= |
-3.4518647 |
4 |
100141 |
2447 |
- |
2485 |
= |
-38 |
* |
(551 |
/ |
3459) |
= |
-6.05319453 |
5 |
100142 |
2466 |
- |
2528 |
= |
-62 |
* |
(604 |
/ |
3459) |
= |
-10.82625034 |
6 |
100143 |
2478 |
- |
2552 |
= |
-74 |
* |
(568 |
/ |
3459) |
= |
-12.15148887 |
7 |
100144 |
2473 |
- |
2567 |
= |
-94 |
* |
(598 |
/ |
3459) |
= |
-16.25093949 |
8 |
100145 |
2497 |
- |
2586 |
= |
-89 |
* |
(541 |
/ |
3459) |
= |
-13.91991898 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Rio Elementary
|
-63 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-76
|
-71
|
-65
|
-66
|
-63
|
-341.0 |
-68.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -53.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -83.2
For the lines, you have the data necessary to plot the chart.