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 |
1376892 |
2380 |
- |
2436 |
= |
-56 |
* |
(199 |
/ |
1278) |
= |
-8.7198748 |
4 |
1376893 |
2424 |
- |
2485 |
= |
-61 |
* |
(182 |
/ |
1278) |
= |
-8.68701092 |
5 |
1376896 |
2453 |
- |
2528 |
= |
-75 |
* |
(184 |
/ |
1278) |
= |
-10.798122 |
6 |
1376897 |
2474 |
- |
2552 |
= |
-78 |
* |
(192 |
/ |
1278) |
= |
-11.7183098 |
7 |
1376900 |
2489 |
- |
2567 |
= |
-78 |
* |
(172 |
/ |
1278) |
= |
-10.49765254 |
8 |
1376901 |
2494 |
- |
2586 |
= |
-92 |
* |
(169 |
/ |
1278) |
= |
-12.16588413 |
11 |
1376904 |
2467 |
- |
2628 |
= |
-161 |
* |
(180 |
/ |
1278) |
= |
-22.67605627 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Gonzales Unified
|
-85 |
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 |
43371 |
2391 |
- |
2436 |
= |
-45 |
* |
(197 |
/ |
1263) |
= |
-7.01900235 |
4 |
43373 |
2433 |
- |
2485 |
= |
-52 |
* |
(184 |
/ |
1263) |
= |
-7.5756136 |
5 |
43374 |
2442 |
- |
2528 |
= |
-86 |
* |
(180 |
/ |
1263) |
= |
-12.256532 |
6 |
43377 |
2439 |
- |
2552 |
= |
-113 |
* |
(173 |
/ |
1263) |
= |
-15.47822642 |
7 |
43379 |
2477 |
- |
2567 |
= |
-90 |
* |
(201 |
/ |
1263) |
= |
-14.32304037 |
8 |
43380 |
2511 |
- |
2586 |
= |
-75 |
* |
(163 |
/ |
1263) |
= |
-9.67933485 |
11 |
43382 |
2491 |
- |
2628 |
= |
-137 |
* |
(165 |
/ |
1263) |
= |
-17.89786221 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Gonzales Unified
|
-84 |
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 |
44438 |
2403 |
- |
2436 |
= |
-33 |
* |
(159 |
/ |
1302) |
= |
-4.0299539 |
4 |
44440 |
2433 |
- |
2485 |
= |
-52 |
* |
(196 |
/ |
1302) |
= |
-7.82795697 |
5 |
44442 |
2442 |
- |
2528 |
= |
-86 |
* |
(186 |
/ |
1302) |
= |
-12.28571421 |
6 |
44444 |
2424 |
- |
2552 |
= |
-128 |
* |
(178 |
/ |
1302) |
= |
-17.49923187 |
7 |
44446 |
2460 |
- |
2567 |
= |
-107 |
* |
(177 |
/ |
1302) |
= |
-14.5460829 |
8 |
44447 |
2487 |
- |
2586 |
= |
-99 |
* |
(201 |
/ |
1302) |
= |
-15.28341012 |
11 |
44449 |
2523 |
- |
2628 |
= |
-105 |
* |
(205 |
/ |
1302) |
= |
-16.53225798 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Gonzales Unified
|
-88 |
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 |
44449 |
2405 |
- |
2436 |
= |
-31 |
* |
(163 |
/ |
1264) |
= |
-3.99762658 |
4 |
44450 |
2446 |
- |
2485 |
= |
-39 |
* |
(164 |
/ |
1264) |
= |
-5.06012657 |
5 |
44453 |
2443 |
- |
2528 |
= |
-85 |
* |
(194 |
/ |
1264) |
= |
-13.04588602 |
6 |
44454 |
2434 |
- |
2552 |
= |
-118 |
* |
(188 |
/ |
1264) |
= |
-17.55063289 |
7 |
44457 |
2425 |
- |
2567 |
= |
-142 |
* |
(185 |
/ |
1264) |
= |
-20.78322778 |
8 |
44458 |
2464 |
- |
2586 |
= |
-122 |
* |
(180 |
/ |
1264) |
= |
-17.37341769 |
11 |
44461 |
2492 |
- |
2628 |
= |
-136 |
* |
(190 |
/ |
1264) |
= |
-20.44303788 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Gonzales Unified
|
-98 |
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 |
44593 |
2411 |
- |
2436 |
= |
-25 |
* |
(155 |
/ |
1213) |
= |
-3.19455893 |
4 |
44594 |
2449 |
- |
2485 |
= |
-36 |
* |
(159 |
/ |
1213) |
= |
-4.71887881 |
5 |
44595 |
2468 |
- |
2528 |
= |
-60 |
* |
(158 |
/ |
1213) |
= |
-7.81533384 |
6 |
44596 |
2416 |
- |
2552 |
= |
-136 |
* |
(187 |
/ |
1213) |
= |
-20.96619942 |
7 |
44597 |
2432 |
- |
2567 |
= |
-135 |
* |
(183 |
/ |
1213) |
= |
-20.36685897 |
8 |
44598 |
2440 |
- |
2586 |
= |
-146 |
* |
(184 |
/ |
1213) |
= |
-22.1467435 |
11 |
44599 |
2494 |
- |
2628 |
= |
-134 |
* |
(187 |
/ |
1213) |
= |
-20.65787295 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Gonzales Unified
|
-100 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-85
|
-84
|
-88
|
-98
|
-100
|
-455.0 |
-91.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -70.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -112.0
For the lines, you have the data necessary to plot the chart.