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 |
1619361 |
2436 |
- |
2436 |
= |
0 |
* |
(526 |
/ |
3576) |
= |
0.0 |
4 |
1619362 |
2463 |
- |
2485 |
= |
-22 |
* |
(546 |
/ |
3576) |
= |
-3.35906039 |
5 |
1619365 |
2492 |
- |
2528 |
= |
-36 |
* |
(575 |
/ |
3576) |
= |
-5.78859059 |
6 |
1619366 |
2523 |
- |
2552 |
= |
-29 |
* |
(541 |
/ |
3576) |
= |
-4.38730424 |
7 |
1619369 |
2549 |
- |
2567 |
= |
-18 |
* |
(525 |
/ |
3576) |
= |
-2.64261744 |
8 |
1619370 |
2564 |
- |
2586 |
= |
-22 |
* |
(499 |
/ |
3576) |
= |
-3.06991051 |
11 |
1619373 |
2551 |
- |
2628 |
= |
-77 |
* |
(364 |
/ |
3576) |
= |
-7.83780759 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Western Placer Unified
|
-27 |
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 |
50646 |
2432 |
- |
2436 |
= |
-4 |
* |
(540 |
/ |
3671) |
= |
-0.58839553 |
4 |
50648 |
2474 |
- |
2485 |
= |
-11 |
* |
(544 |
/ |
3671) |
= |
-1.63007354 |
5 |
50651 |
2495 |
- |
2528 |
= |
-33 |
* |
(552 |
/ |
3671) |
= |
-4.96213565 |
6 |
50652 |
2528 |
- |
2552 |
= |
-24 |
* |
(545 |
/ |
3671) |
= |
-3.56306182 |
7 |
50654 |
2554 |
- |
2567 |
= |
-13 |
* |
(546 |
/ |
3671) |
= |
-1.9335331 |
8 |
50656 |
2577 |
- |
2586 |
= |
-9 |
* |
(532 |
/ |
3671) |
= |
-1.30427676 |
11 |
50659 |
2582 |
- |
2628 |
= |
-46 |
* |
(412 |
/ |
3671) |
= |
-5.16262595 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Western Placer Unified
|
-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 |
52091 |
2444 |
- |
2436 |
= |
8 |
* |
(521 |
/ |
3656) |
= |
1.14004376 |
4 |
52092 |
2476 |
- |
2485 |
= |
-9 |
* |
(536 |
/ |
3656) |
= |
-1.31947484 |
5 |
52094 |
2503 |
- |
2528 |
= |
-25 |
* |
(531 |
/ |
3656) |
= |
-3.6310175 |
6 |
52096 |
2532 |
- |
2552 |
= |
-20 |
* |
(522 |
/ |
3656) |
= |
-2.85557986 |
7 |
52098 |
2550 |
- |
2567 |
= |
-17 |
* |
(550 |
/ |
3656) |
= |
-2.55743981 |
8 |
52100 |
2573 |
- |
2586 |
= |
-13 |
* |
(546 |
/ |
3656) |
= |
-1.94146607 |
11 |
52102 |
2573 |
- |
2628 |
= |
-55 |
* |
(450 |
/ |
3656) |
= |
-6.76969365 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Western Placer Unified
|
-18 |
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 |
52136 |
2453 |
- |
2436 |
= |
17 |
* |
(489 |
/ |
3630) |
= |
2.29008263 |
4 |
52139 |
2489 |
- |
2485 |
= |
4 |
* |
(526 |
/ |
3630) |
= |
0.57961432 |
5 |
52140 |
2507 |
- |
2528 |
= |
-21 |
* |
(538 |
/ |
3630) |
= |
-3.11239669 |
6 |
52143 |
2537 |
- |
2552 |
= |
-15 |
* |
(544 |
/ |
3630) |
= |
-2.24793387 |
7 |
52144 |
2560 |
- |
2567 |
= |
-7 |
* |
(529 |
/ |
3630) |
= |
-1.02011019 |
8 |
52147 |
2577 |
- |
2586 |
= |
-9 |
* |
(559 |
/ |
3630) |
= |
-1.38595041 |
11 |
52148 |
2571 |
- |
2628 |
= |
-57 |
* |
(445 |
/ |
3630) |
= |
-6.98760327 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Western Placer Unified
|
-12 |
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 |
52319 |
2462 |
- |
2436 |
= |
26 |
* |
(558 |
/ |
3705) |
= |
3.91578946 |
4 |
52320 |
2492 |
- |
2485 |
= |
7 |
* |
(481 |
/ |
3705) |
= |
0.90877193 |
5 |
52321 |
2519 |
- |
2528 |
= |
-9 |
* |
(531 |
/ |
3705) |
= |
-1.28987854 |
6 |
52322 |
2540 |
- |
2552 |
= |
-12 |
* |
(532 |
/ |
3705) |
= |
-1.72307692 |
7 |
52323 |
2571 |
- |
2567 |
= |
4 |
* |
(562 |
/ |
3705) |
= |
0.60674764 |
8 |
52324 |
2577 |
- |
2586 |
= |
-9 |
* |
(539 |
/ |
3705) |
= |
-1.30931174 |
11 |
52325 |
2585 |
- |
2628 |
= |
-43 |
* |
(502 |
/ |
3705) |
= |
-5.82618081 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Western Placer Unified
|
-5 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-27
|
-19
|
-18
|
-12
|
-5
|
-81.0 |
-16.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 7.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -40.2
For the lines, you have the data necessary to plot the chart.