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 |
7 |
1362877 |
2477 |
- |
2567 |
= |
-90 |
* |
(2160 |
/ |
6400) |
= |
-30.375 |
8 |
1362878 |
2502 |
- |
2586 |
= |
-84 |
* |
(2050 |
/ |
6400) |
= |
-26.90625 |
11 |
1362881 |
2524 |
- |
2628 |
= |
-104 |
* |
(2190 |
/ |
6400) |
= |
-35.5875 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Salinas Union High
|
-93 |
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 |
7 |
42882 |
2481 |
- |
2567 |
= |
-86 |
* |
(2183 |
/ |
6634) |
= |
-28.29936683 |
8 |
42884 |
2502 |
- |
2586 |
= |
-84 |
* |
(2176 |
/ |
6634) |
= |
-27.55260774 |
11 |
42887 |
2545 |
- |
2628 |
= |
-83 |
* |
(2275 |
/ |
6634) |
= |
-28.46321971 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Salinas Union High
|
-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 |
7 |
43954 |
2484 |
- |
2567 |
= |
-83 |
* |
(2283 |
/ |
6876) |
= |
-27.55802786 |
8 |
43956 |
2499 |
- |
2586 |
= |
-87 |
* |
(2179 |
/ |
6876) |
= |
-27.57024432 |
11 |
43957 |
2530 |
- |
2628 |
= |
-98 |
* |
(2414 |
/ |
6876) |
= |
-34.40546829 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Salinas Union High
|
-90 |
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 |
7 |
43971 |
2476 |
- |
2567 |
= |
-91 |
* |
(2381 |
/ |
7109) |
= |
-30.4784076 |
8 |
43972 |
2504 |
- |
2586 |
= |
-82 |
* |
(2239 |
/ |
7109) |
= |
-25.82613583 |
11 |
43975 |
2526 |
- |
2628 |
= |
-102 |
* |
(2489 |
/ |
7109) |
= |
-35.71219573 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Salinas Union High
|
-92 |
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 |
7 |
44101 |
2491 |
- |
2567 |
= |
-76 |
* |
(2422 |
/ |
7343) |
= |
-25.06768344 |
8 |
44102 |
2507 |
- |
2586 |
= |
-79 |
* |
(2377 |
/ |
7343) |
= |
-25.57306275 |
11 |
44103 |
2527 |
- |
2628 |
= |
-101 |
* |
(2544 |
/ |
7343) |
= |
-34.9916927 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Salinas Union High
|
-86 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-93
|
-84
|
-90
|
-92
|
-86
|
-445.0 |
-89.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -80.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -98.0
For the lines, you have the data necessary to plot the chart.