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 |
433204 |
0 |
- |
2436 |
= |
|
* |
(0 |
/ |
57) |
= |
|
| 4 |
433207 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
57) |
= |
|
| 5 |
433208 |
0 |
- |
2528 |
= |
|
* |
(2 |
/ |
57) |
= |
|
| 6 |
433211 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
57) |
= |
|
| 7 |
433212 |
0 |
- |
2567 |
= |
|
* |
(4 |
/ |
57) |
= |
|
| 8 |
433215 |
2381 |
- |
2586 |
= |
-205 |
* |
(20 |
/ |
57) |
= |
-71.92982436 |
| 11 |
433216 |
2410 |
- |
2628 |
= |
-218 |
* |
(31 |
/ |
57) |
= |
-118.56140348 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Imperial 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 |
| 5 |
13602 |
0 |
- |
2528 |
= |
|
* |
(0 |
/ |
66) |
= |
|
| 7 |
13604 |
0 |
- |
2567 |
= |
|
* |
(6 |
/ |
66) |
= |
|
| 8 |
13606 |
2373 |
- |
2586 |
= |
-213 |
* |
(25 |
/ |
66) |
= |
-80.68181801 |
| 11 |
13607 |
2438 |
- |
2628 |
= |
-190 |
* |
(35 |
/ |
66) |
= |
-100.7575757 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Imperial County Office of Education
|
-181 |
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 |
13930 |
0 |
- |
2436 |
= |
|
* |
(0 |
/ |
52) |
= |
|
| 4 |
13933 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
52) |
= |
|
| 6 |
13934 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
52) |
= |
|
| 7 |
13937 |
0 |
- |
2567 |
= |
|
* |
(0 |
/ |
52) |
= |
|
| 8 |
13938 |
2395 |
- |
2586 |
= |
-191 |
* |
(11 |
/ |
52) |
= |
-40.40384605 |
| 11 |
13941 |
2424 |
- |
2628 |
= |
-204 |
* |
(37 |
/ |
52) |
= |
-145.15384604 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Imperial County Office of Education
|
-186 |
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 |
13931 |
0 |
- |
2436 |
= |
|
* |
(0 |
/ |
81) |
= |
|
| 4 |
13932 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
81) |
= |
|
| 5 |
13935 |
0 |
- |
2528 |
= |
|
* |
(0 |
/ |
81) |
= |
|
| 6 |
13936 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
81) |
= |
|
| 7 |
13939 |
0 |
- |
2567 |
= |
|
* |
(0 |
/ |
81) |
= |
|
| 8 |
13940 |
2423 |
- |
2586 |
= |
-163 |
* |
(19 |
/ |
81) |
= |
-38.23456786 |
| 11 |
13943 |
2418 |
- |
2628 |
= |
-210 |
* |
(48 |
/ |
81) |
= |
-124.44444432 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Imperial County Office of Education
|
-163 |
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 |
14055 |
0 |
- |
2436 |
= |
|
* |
(0 |
/ |
86) |
= |
|
| 4 |
14056 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
86) |
= |
|
| 5 |
14057 |
0 |
- |
2528 |
= |
|
* |
(0 |
/ |
86) |
= |
|
| 6 |
14058 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
86) |
= |
|
| 7 |
14059 |
2326 |
- |
2567 |
= |
-241 |
* |
(11 |
/ |
86) |
= |
-30.82558122 |
| 8 |
14060 |
2414 |
- |
2586 |
= |
-172 |
* |
(23 |
/ |
86) |
= |
-45.99999992 |
| 11 |
14061 |
2417 |
- |
2628 |
= |
-211 |
* |
(44 |
/ |
86) |
= |
-107.95348817 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Imperial County Office of Education
|
-185 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-190
|
-181
|
-186
|
-163
|
-185
|
-905.0 |
-181.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -151.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -211.0
For the lines, you have the data necessary to plot the chart.