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 |
1488955 |
2395 |
- |
2436 |
= |
-41 |
* |
(488 |
/ |
3228) |
= |
-6.19826516 |
4 |
1488958 |
2431 |
- |
2485 |
= |
-54 |
* |
(537 |
/ |
3228) |
= |
-8.98327136 |
5 |
1488959 |
2452 |
- |
2528 |
= |
-76 |
* |
(539 |
/ |
3228) |
= |
-12.69021066 |
6 |
1488962 |
2446 |
- |
2552 |
= |
-106 |
* |
(552 |
/ |
3228) |
= |
-18.126394 |
7 |
1488963 |
2478 |
- |
2567 |
= |
-89 |
* |
(578 |
/ |
3228) |
= |
-15.93618336 |
8 |
1488966 |
2504 |
- |
2586 |
= |
-82 |
* |
(534 |
/ |
3228) |
= |
-13.56505574 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for La Habra City Elementary
|
-75 |
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 |
46736 |
2412 |
- |
2436 |
= |
-24 |
* |
(551 |
/ |
3224) |
= |
-4.10173697 |
4 |
46738 |
2451 |
- |
2485 |
= |
-34 |
* |
(483 |
/ |
3224) |
= |
-5.09367243 |
5 |
46740 |
2470 |
- |
2528 |
= |
-58 |
* |
(528 |
/ |
3224) |
= |
-9.4987593 |
6 |
46742 |
2455 |
- |
2552 |
= |
-97 |
* |
(549 |
/ |
3224) |
= |
-16.51767982 |
7 |
46745 |
2486 |
- |
2567 |
= |
-81 |
* |
(544 |
/ |
3224) |
= |
-13.66749377 |
8 |
46746 |
2509 |
- |
2586 |
= |
-77 |
* |
(569 |
/ |
3224) |
= |
-13.58964014 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for La Habra City Elementary
|
-62 |
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 |
48005 |
2422 |
- |
2436 |
= |
-14 |
* |
(518 |
/ |
3120) |
= |
-2.32435897 |
4 |
48006 |
2453 |
- |
2485 |
= |
-32 |
* |
(533 |
/ |
3120) |
= |
-5.46666666 |
5 |
48008 |
2473 |
- |
2528 |
= |
-55 |
* |
(474 |
/ |
3120) |
= |
-8.35576918 |
6 |
48010 |
2465 |
- |
2552 |
= |
-87 |
* |
(520 |
/ |
3120) |
= |
-14.49999994 |
7 |
48012 |
2476 |
- |
2567 |
= |
-91 |
* |
(544 |
/ |
3120) |
= |
-15.86666663 |
8 |
48015 |
2508 |
- |
2586 |
= |
-78 |
* |
(531 |
/ |
3120) |
= |
-13.27499995 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for La Habra City Elementary
|
-60 |
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 |
48007 |
2415 |
- |
2436 |
= |
-21 |
* |
(456 |
/ |
3040) |
= |
-3.15 |
4 |
48008 |
2453 |
- |
2485 |
= |
-32 |
* |
(530 |
/ |
3040) |
= |
-5.57894736 |
5 |
48011 |
2480 |
- |
2528 |
= |
-48 |
* |
(523 |
/ |
3040) |
= |
-8.2578947 |
6 |
48012 |
2470 |
- |
2552 |
= |
-82 |
* |
(465 |
/ |
3040) |
= |
-12.54276313 |
7 |
48015 |
2481 |
- |
2567 |
= |
-86 |
* |
(520 |
/ |
3040) |
= |
-14.71052627 |
8 |
48016 |
2491 |
- |
2586 |
= |
-95 |
* |
(546 |
/ |
3040) |
= |
-17.06249999 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for La Habra City Elementary
|
-61 |
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 |
48188 |
2415 |
- |
2436 |
= |
-21 |
* |
(494 |
/ |
2997) |
= |
-3.46146146 |
4 |
48189 |
2451 |
- |
2485 |
= |
-34 |
* |
(459 |
/ |
2997) |
= |
-5.2072072 |
5 |
48190 |
2482 |
- |
2528 |
= |
-46 |
* |
(524 |
/ |
2997) |
= |
-8.04270937 |
6 |
48191 |
2495 |
- |
2552 |
= |
-57 |
* |
(523 |
/ |
2997) |
= |
-9.94694694 |
7 |
48192 |
2495 |
- |
2567 |
= |
-72 |
* |
(477 |
/ |
2997) |
= |
-11.45945945 |
8 |
48193 |
2502 |
- |
2586 |
= |
-84 |
* |
(520 |
/ |
2997) |
= |
-14.57457456 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for La Habra City Elementary
|
-53 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-75
|
-62
|
-60
|
-61
|
-53
|
-311.0 |
-62.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -41.2
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.