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 |
51027 |
2427 |
- |
2436 |
= |
-9 |
* |
(53 |
/ |
360) |
= |
-1.325 |
4 |
51028 |
2443 |
- |
2485 |
= |
-42 |
* |
(55 |
/ |
360) |
= |
-6.41666663 |
5 |
51031 |
2466 |
- |
2528 |
= |
-62 |
* |
(47 |
/ |
360) |
= |
-8.09444441 |
6 |
51033 |
2490 |
- |
2552 |
= |
-62 |
* |
(64 |
/ |
360) |
= |
-11.02222217 |
7 |
51034 |
2503 |
- |
2567 |
= |
-64 |
* |
(83 |
/ |
360) |
= |
-14.75555552 |
8 |
51037 |
2584 |
- |
2586 |
= |
-2 |
* |
(47 |
/ |
360) |
= |
-0.26111111 |
11 |
51039 |
2610 |
- |
2628 |
= |
-18 |
* |
(11 |
/ |
360) |
= |
-0.54999999 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for SBE - Magnolia Science Academy Santa Ana
|
-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 |
51062 |
2398 |
- |
2436 |
= |
-38 |
* |
(65 |
/ |
428) |
= |
-5.771028 |
4 |
51065 |
2453 |
- |
2485 |
= |
-32 |
* |
(60 |
/ |
428) |
= |
-4.48598128 |
5 |
51066 |
2476 |
- |
2528 |
= |
-52 |
* |
(56 |
/ |
428) |
= |
-6.80373829 |
6 |
51069 |
2468 |
- |
2552 |
= |
-84 |
* |
(57 |
/ |
428) |
= |
-11.18691588 |
7 |
51070 |
2490 |
- |
2567 |
= |
-77 |
* |
(74 |
/ |
428) |
= |
-13.31308409 |
8 |
51073 |
2512 |
- |
2586 |
= |
-74 |
* |
(76 |
/ |
428) |
= |
-13.14018688 |
11 |
51074 |
2570 |
- |
2628 |
= |
-58 |
* |
(40 |
/ |
428) |
= |
-5.42056069 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for SBE - Magnolia Science Academy Santa Ana
|
-60 |
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 |
51269 |
2431 |
- |
2436 |
= |
-5 |
* |
(52 |
/ |
374) |
= |
-0.69518717 |
4 |
51270 |
2428 |
- |
2485 |
= |
-57 |
* |
(61 |
/ |
374) |
= |
-9.29679143 |
5 |
51271 |
2469 |
- |
2528 |
= |
-59 |
* |
(64 |
/ |
374) |
= |
-10.09625665 |
6 |
51272 |
2482 |
- |
2552 |
= |
-70 |
* |
(54 |
/ |
374) |
= |
-10.10695182 |
7 |
51273 |
2482 |
- |
2567 |
= |
-85 |
* |
(51 |
/ |
374) |
= |
-11.59090906 |
8 |
51274 |
2520 |
- |
2586 |
= |
-66 |
* |
(65 |
/ |
374) |
= |
-11.47058821 |
11 |
51275 |
2651 |
- |
2628 |
= |
23 |
* |
(27 |
/ |
374) |
= |
1.6604278 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for SBE - Magnolia Science Academy Santa Ana
|
-52 |
Last steps
Compute the average
2017 |
2018 |
2019 |
Sum |
Average |
-42
|
-60
|
-52
|
-154.0 |
-51.3 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -24.333333333333333333
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -78.333333333333333333
For the lines, you have the data necessary to plot the chart.