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 |
195201 |
2400 |
- |
2436 |
= |
-36 |
* |
(53 |
/ |
353) |
= |
-5.40509915 |
4 |
195204 |
2446 |
- |
2485 |
= |
-39 |
* |
(58 |
/ |
353) |
= |
-6.40793201 |
5 |
195205 |
2462 |
- |
2528 |
= |
-66 |
* |
(62 |
/ |
353) |
= |
-11.59206794 |
6 |
195208 |
2530 |
- |
2552 |
= |
-22 |
* |
(61 |
/ |
353) |
= |
-3.8016997 |
7 |
195209 |
2526 |
- |
2567 |
= |
-41 |
* |
(56 |
/ |
353) |
= |
-6.50424927 |
8 |
195212 |
2624 |
- |
2586 |
= |
38 |
* |
(63 |
/ |
353) |
= |
6.78186965 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Knightsen Elementary
|
-27 |
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 |
5816 |
2395 |
- |
2436 |
= |
-41 |
* |
(62 |
/ |
350) |
= |
-7.26285714 |
4 |
5818 |
2440 |
- |
2485 |
= |
-45 |
* |
(57 |
/ |
350) |
= |
-7.32857139 |
5 |
5820 |
2486 |
- |
2528 |
= |
-42 |
* |
(62 |
/ |
350) |
= |
-7.43999999 |
6 |
5822 |
2502 |
- |
2552 |
= |
-50 |
* |
(60 |
/ |
350) |
= |
-8.57142855 |
7 |
5824 |
2557 |
- |
2567 |
= |
-10 |
* |
(61 |
/ |
350) |
= |
-1.74285714 |
8 |
5825 |
2597 |
- |
2586 |
= |
11 |
* |
(48 |
/ |
350) |
= |
1.50857143 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Knightsen Elementary
|
-31 |
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 |
5951 |
2410 |
- |
2436 |
= |
-26 |
* |
(63 |
/ |
369) |
= |
-4.43902438 |
4 |
5953 |
2446 |
- |
2485 |
= |
-39 |
* |
(59 |
/ |
369) |
= |
-6.23577232 |
5 |
5956 |
2473 |
- |
2528 |
= |
-55 |
* |
(54 |
/ |
369) |
= |
-8.04878047 |
6 |
5958 |
2512 |
- |
2552 |
= |
-40 |
* |
(77 |
/ |
369) |
= |
-8.34688344 |
7 |
5960 |
2504 |
- |
2567 |
= |
-63 |
* |
(57 |
/ |
369) |
= |
-9.73170727 |
8 |
5962 |
2600 |
- |
2586 |
= |
14 |
* |
(59 |
/ |
369) |
= |
2.23848237 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Knightsen Elementary
|
-35 |
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 |
5945 |
2408 |
- |
2436 |
= |
-28 |
* |
(65 |
/ |
365) |
= |
-4.98630135 |
4 |
5947 |
2467 |
- |
2485 |
= |
-18 |
* |
(61 |
/ |
365) |
= |
-3.00821917 |
5 |
5949 |
2465 |
- |
2528 |
= |
-63 |
* |
(58 |
/ |
365) |
= |
-10.01095887 |
6 |
5951 |
2510 |
- |
2552 |
= |
-42 |
* |
(52 |
/ |
365) |
= |
-5.98356163 |
7 |
5953 |
2532 |
- |
2567 |
= |
-35 |
* |
(78 |
/ |
365) |
= |
-7.47945205 |
8 |
5955 |
2552 |
- |
2586 |
= |
-34 |
* |
(51 |
/ |
365) |
= |
-4.75068492 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Knightsen Elementary
|
-36 |
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 |
6012 |
2438 |
- |
2436 |
= |
2 |
* |
(61 |
/ |
363) |
= |
0.33608815 |
4 |
6013 |
2461 |
- |
2485 |
= |
-24 |
* |
(60 |
/ |
363) |
= |
-3.96694214 |
5 |
6014 |
2499 |
- |
2528 |
= |
-29 |
* |
(59 |
/ |
363) |
= |
-4.71349862 |
6 |
6015 |
2501 |
- |
2552 |
= |
-51 |
* |
(58 |
/ |
363) |
= |
-8.14876031 |
7 |
6016 |
2516 |
- |
2567 |
= |
-51 |
* |
(49 |
/ |
363) |
= |
-6.88429748 |
8 |
6017 |
2551 |
- |
2586 |
= |
-35 |
* |
(76 |
/ |
363) |
= |
-7.32782369 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Knightsen Elementary
|
-31 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-27
|
-31
|
-35
|
-36
|
-31
|
-160.0 |
-32.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -23.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -41.0
For the lines, you have the data necessary to plot the chart.