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 |
372299 |
2399 |
- |
2436 |
= |
-37 |
* |
(170 |
/ |
1144) |
= |
-5.49825173 |
4 |
372300 |
2434 |
- |
2485 |
= |
-51 |
* |
(141 |
/ |
1144) |
= |
-6.28583915 |
5 |
372303 |
2423 |
- |
2528 |
= |
-105 |
* |
(182 |
/ |
1144) |
= |
-16.70454545 |
6 |
372304 |
2436 |
- |
2552 |
= |
-116 |
* |
(160 |
/ |
1144) |
= |
-16.22377612 |
7 |
372307 |
2456 |
- |
2567 |
= |
-111 |
* |
(157 |
/ |
1144) |
= |
-15.23339158 |
8 |
372308 |
2487 |
- |
2586 |
= |
-99 |
* |
(158 |
/ |
1144) |
= |
-13.67307691 |
11 |
372311 |
2495 |
- |
2628 |
= |
-133 |
* |
(176 |
/ |
1144) |
= |
-20.46153835 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Firebaugh-Las Deltas Unified
|
-94 |
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 |
11288 |
2426 |
- |
2436 |
= |
-10 |
* |
(163 |
/ |
1159) |
= |
-1.40638481 |
4 |
11290 |
2421 |
- |
2485 |
= |
-64 |
* |
(177 |
/ |
1159) |
= |
-9.77394304 |
5 |
11292 |
2454 |
- |
2528 |
= |
-74 |
* |
(144 |
/ |
1159) |
= |
-9.19413281 |
6 |
11293 |
2452 |
- |
2552 |
= |
-100 |
* |
(186 |
/ |
1159) |
= |
-16.0483175 |
7 |
11295 |
2466 |
- |
2567 |
= |
-101 |
* |
(161 |
/ |
1159) |
= |
-14.03019836 |
8 |
11298 |
2499 |
- |
2586 |
= |
-87 |
* |
(159 |
/ |
1159) |
= |
-11.93528901 |
11 |
11300 |
2528 |
- |
2628 |
= |
-100 |
* |
(169 |
/ |
1159) |
= |
-14.5815358 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Firebaugh-Las Deltas Unified
|
-77 |
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 |
11610 |
2431 |
- |
2436 |
= |
-5 |
* |
(180 |
/ |
1187) |
= |
-0.75821398 |
4 |
11612 |
2432 |
- |
2485 |
= |
-53 |
* |
(169 |
/ |
1187) |
= |
-7.54591406 |
5 |
11614 |
2445 |
- |
2528 |
= |
-83 |
* |
(177 |
/ |
1187) |
= |
-12.37657961 |
6 |
11615 |
2457 |
- |
2552 |
= |
-95 |
* |
(143 |
/ |
1187) |
= |
-11.44481882 |
7 |
11618 |
2477 |
- |
2567 |
= |
-90 |
* |
(187 |
/ |
1187) |
= |
-14.17860144 |
8 |
11620 |
2519 |
- |
2586 |
= |
-67 |
* |
(165 |
/ |
1187) |
= |
-9.3133951 |
11 |
11621 |
2505 |
- |
2628 |
= |
-123 |
* |
(166 |
/ |
1187) |
= |
-17.20134791 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Firebaugh-Las Deltas Unified
|
-73 |
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 |
11644 |
2435 |
- |
2436 |
= |
-1 |
* |
(166 |
/ |
1164) |
= |
-0.14261168 |
4 |
11646 |
2448 |
- |
2485 |
= |
-37 |
* |
(178 |
/ |
1164) |
= |
-5.65807559 |
5 |
11648 |
2467 |
- |
2528 |
= |
-61 |
* |
(166 |
/ |
1164) |
= |
-8.69931266 |
6 |
11650 |
2479 |
- |
2552 |
= |
-73 |
* |
(162 |
/ |
1164) |
= |
-10.15979376 |
7 |
11652 |
2508 |
- |
2567 |
= |
-59 |
* |
(140 |
/ |
1164) |
= |
-7.09621993 |
8 |
11654 |
2524 |
- |
2586 |
= |
-62 |
* |
(185 |
/ |
1164) |
= |
-9.85395183 |
11 |
11656 |
2513 |
- |
2628 |
= |
-115 |
* |
(167 |
/ |
1164) |
= |
-16.49914085 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Firebaugh-Las Deltas Unified
|
-58 |
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 |
11737 |
2443 |
- |
2436 |
= |
7 |
* |
(184 |
/ |
1150) |
= |
1.12 |
4 |
11738 |
2453 |
- |
2485 |
= |
-32 |
* |
(162 |
/ |
1150) |
= |
-4.50782608 |
5 |
11739 |
2488 |
- |
2528 |
= |
-40 |
* |
(184 |
/ |
1150) |
= |
-6.4 |
6 |
11740 |
2476 |
- |
2552 |
= |
-76 |
* |
(162 |
/ |
1150) |
= |
-10.70608694 |
7 |
11741 |
2513 |
- |
2567 |
= |
-54 |
* |
(165 |
/ |
1150) |
= |
-7.74782604 |
8 |
11742 |
2563 |
- |
2586 |
= |
-23 |
* |
(142 |
/ |
1150) |
= |
-2.83999998 |
11 |
11743 |
2510 |
- |
2628 |
= |
-118 |
* |
(151 |
/ |
1150) |
= |
-15.49391295 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Firebaugh-Las Deltas Unified
|
-47 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-94
|
-77
|
-73
|
-58
|
-47
|
-349.0 |
-69.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -15.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -123.8
For the lines, you have the data necessary to plot the chart.