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 |
1865825 |
2402 |
- |
2436 |
= |
-34 |
* |
(3346 |
/ |
22885) |
= |
-4.97111644 |
4 |
1865828 |
2443 |
- |
2485 |
= |
-42 |
* |
(3236 |
/ |
22885) |
= |
-5.93891193 |
5 |
1865829 |
2474 |
- |
2528 |
= |
-54 |
* |
(3242 |
/ |
22885) |
= |
-7.64990163 |
6 |
1865832 |
2501 |
- |
2552 |
= |
-51 |
* |
(3296 |
/ |
22885) |
= |
-7.34524797 |
7 |
1865833 |
2519 |
- |
2567 |
= |
-48 |
* |
(3223 |
/ |
22885) |
= |
-6.76006114 |
8 |
1865836 |
2539 |
- |
2586 |
= |
-47 |
* |
(3096 |
/ |
22885) |
= |
-6.35840069 |
11 |
1865837 |
2552 |
- |
2628 |
= |
-76 |
* |
(3446 |
/ |
22885) |
= |
-11.44400256 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for San Juan Unified
|
-50 |
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 |
57589 |
2408 |
- |
2436 |
= |
-28 |
* |
(3275 |
/ |
23064) |
= |
-3.97589315 |
4 |
57590 |
2454 |
- |
2485 |
= |
-31 |
* |
(3357 |
/ |
23064) |
= |
-4.51209675 |
5 |
57592 |
2476 |
- |
2528 |
= |
-52 |
* |
(3250 |
/ |
23064) |
= |
-7.32743669 |
6 |
57594 |
2502 |
- |
2552 |
= |
-50 |
* |
(3216 |
/ |
23064) |
= |
-6.97190425 |
7 |
57597 |
2533 |
- |
2567 |
= |
-34 |
* |
(3297 |
/ |
23064) |
= |
-4.86030177 |
8 |
57598 |
2543 |
- |
2586 |
= |
-43 |
* |
(3248 |
/ |
23064) |
= |
-6.0554977 |
11 |
57601 |
2562 |
- |
2628 |
= |
-66 |
* |
(3421 |
/ |
23064) |
= |
-9.78954214 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for San Juan Unified
|
-43 |
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 |
59266 |
2410 |
- |
2436 |
= |
-26 |
* |
(3219 |
/ |
23089) |
= |
-3.62484299 |
4 |
59267 |
2447 |
- |
2485 |
= |
-38 |
* |
(3294 |
/ |
23089) |
= |
-5.42128284 |
5 |
59270 |
2473 |
- |
2528 |
= |
-55 |
* |
(3383 |
/ |
23089) |
= |
-8.05859929 |
6 |
59271 |
2496 |
- |
2552 |
= |
-56 |
* |
(3226 |
/ |
23089) |
= |
-7.82433193 |
7 |
59274 |
2524 |
- |
2567 |
= |
-43 |
* |
(3236 |
/ |
23089) |
= |
-6.02659272 |
8 |
59276 |
2542 |
- |
2586 |
= |
-44 |
* |
(3289 |
/ |
23089) |
= |
-6.26774654 |
11 |
59278 |
2552 |
- |
2628 |
= |
-76 |
* |
(3442 |
/ |
23089) |
= |
-11.32972409 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for San Juan Unified
|
-49 |
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 |
59380 |
2412 |
- |
2436 |
= |
-24 |
* |
(3039 |
/ |
22967) |
= |
-3.17568684 |
4 |
59383 |
2453 |
- |
2485 |
= |
-32 |
* |
(3229 |
/ |
22967) |
= |
-4.49897677 |
5 |
59384 |
2471 |
- |
2528 |
= |
-57 |
* |
(3261 |
/ |
22967) |
= |
-8.0932207 |
6 |
59387 |
2497 |
- |
2552 |
= |
-55 |
* |
(3365 |
/ |
22967) |
= |
-8.05830102 |
7 |
59388 |
2518 |
- |
2567 |
= |
-49 |
* |
(3295 |
/ |
22967) |
= |
-7.02986894 |
8 |
59391 |
2540 |
- |
2586 |
= |
-46 |
* |
(3257 |
/ |
22967) |
= |
-6.52335959 |
11 |
59392 |
2550 |
- |
2628 |
= |
-78 |
* |
(3521 |
/ |
22967) |
= |
-11.9579396 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for San Juan Unified
|
-49 |
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 |
59635 |
2418 |
- |
2436 |
= |
-18 |
* |
(2929 |
/ |
20592) |
= |
-2.56031467 |
4 |
59636 |
2460 |
- |
2485 |
= |
-25 |
* |
(2758 |
/ |
20592) |
= |
-3.3483877 |
5 |
59637 |
2478 |
- |
2528 |
= |
-50 |
* |
(3004 |
/ |
20592) |
= |
-7.29409475 |
6 |
59638 |
2501 |
- |
2552 |
= |
-51 |
* |
(2974 |
/ |
20592) |
= |
-7.36567597 |
7 |
59639 |
2528 |
- |
2567 |
= |
-39 |
* |
(3070 |
/ |
20592) |
= |
-5.81439394 |
8 |
59640 |
2535 |
- |
2586 |
= |
-51 |
* |
(2974 |
/ |
20592) |
= |
-7.36567597 |
11 |
59641 |
2558 |
- |
2628 |
= |
-70 |
* |
(2883 |
/ |
20592) |
= |
-9.80040789 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for San Juan Unified
|
-44 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-50
|
-43
|
-49
|
-49
|
-44
|
-235.0 |
-47.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -38.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -56.0
For the lines, you have the data necessary to plot the chart.