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 |
2849824 |
0 |
- |
2436 |
= |
|
* |
(4 |
/ |
102) |
= |
|
4 |
2849825 |
2344 |
- |
2485 |
= |
-141 |
* |
(10 |
/ |
102) |
= |
-13.82352932 |
5 |
2849827 |
0 |
- |
2528 |
= |
|
* |
(5 |
/ |
102) |
= |
|
6 |
2849830 |
2336 |
- |
2552 |
= |
-216 |
* |
(11 |
/ |
102) |
= |
-23.29411759 |
7 |
2849831 |
2374 |
- |
2567 |
= |
-193 |
* |
(11 |
/ |
102) |
= |
-20.81372544 |
8 |
2849834 |
2398 |
- |
2586 |
= |
-188 |
* |
(17 |
/ |
102) |
= |
-31.33333321 |
11 |
2849836 |
2395 |
- |
2628 |
= |
-233 |
* |
(44 |
/ |
102) |
= |
-100.50980392 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Sonoma County Office of Education
|
-190 |
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 |
87130 |
0 |
- |
2436 |
= |
|
* |
(1 |
/ |
71) |
= |
|
4 |
87132 |
0 |
- |
2485 |
= |
|
* |
(7 |
/ |
71) |
= |
|
5 |
87134 |
0 |
- |
2528 |
= |
|
* |
(2 |
/ |
71) |
= |
|
6 |
87136 |
0 |
- |
2552 |
= |
|
* |
(4 |
/ |
71) |
= |
|
7 |
87138 |
2350 |
- |
2567 |
= |
-217 |
* |
(13 |
/ |
71) |
= |
-39.73239425 |
8 |
87141 |
2335 |
- |
2586 |
= |
-251 |
* |
(18 |
/ |
71) |
= |
-63.63380263 |
11 |
87142 |
2454 |
- |
2628 |
= |
-174 |
* |
(26 |
/ |
71) |
= |
-63.71830984 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Sonoma County Office of Education
|
-167 |
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 |
89573 |
0 |
- |
2436 |
= |
|
* |
(0 |
/ |
85) |
= |
|
4 |
89575 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
85) |
= |
|
5 |
89577 |
0 |
- |
2528 |
= |
|
* |
(0 |
/ |
85) |
= |
|
6 |
89579 |
2368 |
- |
2552 |
= |
-184 |
* |
(16 |
/ |
85) |
= |
-34.6352941 |
7 |
89582 |
0 |
- |
2567 |
= |
|
* |
(0 |
/ |
85) |
= |
|
8 |
89584 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
85) |
= |
|
11 |
89586 |
2422 |
- |
2628 |
= |
-206 |
* |
(34 |
/ |
85) |
= |
-82.4 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Sonoma County Office of Education
|
-117 |
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 |
89784 |
0 |
- |
2436 |
= |
|
* |
(0 |
/ |
85) |
= |
|
4 |
89787 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
85) |
= |
|
5 |
89788 |
0 |
- |
2528 |
= |
|
* |
(0 |
/ |
85) |
= |
|
6 |
89791 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
85) |
= |
|
7 |
89793 |
2387 |
- |
2567 |
= |
-180 |
* |
(11 |
/ |
85) |
= |
-23.29411752 |
8 |
89794 |
2356 |
- |
2586 |
= |
-230 |
* |
(17 |
/ |
85) |
= |
-46.0 |
11 |
89797 |
2427 |
- |
2628 |
= |
-201 |
* |
(40 |
/ |
85) |
= |
-94.58823524 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Sonoma County Office of Education
|
-164 |
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 |
90416 |
0 |
- |
2436 |
= |
|
* |
(4 |
/ |
110) |
= |
|
4 |
90417 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
110) |
= |
|
5 |
90418 |
0 |
- |
2528 |
= |
|
* |
(0 |
/ |
110) |
= |
|
6 |
90419 |
2346 |
- |
2552 |
= |
-206 |
* |
(12 |
/ |
110) |
= |
-22.47272725 |
7 |
90420 |
2417 |
- |
2567 |
= |
-150 |
* |
(14 |
/ |
110) |
= |
-19.09090905 |
8 |
90421 |
2392 |
- |
2586 |
= |
-194 |
* |
(35 |
/ |
110) |
= |
-61.72727269 |
11 |
90422 |
2397 |
- |
2628 |
= |
-231 |
* |
(42 |
/ |
110) |
= |
-88.19999981 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Sonoma County Office of Education
|
-191 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-190
|
-167
|
-117
|
-164
|
-191
|
-829.0 |
-165.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -75.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -255.8
For the lines, you have the data necessary to plot the chart.