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 |
2781688 |
2464 |
- |
2436 |
= |
28 |
* |
(31 |
/ |
169) |
= |
5.13609466 |
4 |
2781691 |
2491 |
- |
2485 |
= |
6 |
* |
(20 |
/ |
169) |
= |
0.71005917 |
5 |
2781692 |
2536 |
- |
2528 |
= |
8 |
* |
(24 |
/ |
169) |
= |
1.13609467 |
6 |
2781695 |
2558 |
- |
2552 |
= |
6 |
* |
(28 |
/ |
169) |
= |
0.99408284 |
7 |
2781696 |
2594 |
- |
2567 |
= |
27 |
* |
(32 |
/ |
169) |
= |
5.11242602 |
8 |
2781699 |
2621 |
- |
2586 |
= |
35 |
* |
(34 |
/ |
169) |
= |
7.04142009 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Millville Elementary
|
20 |
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 |
84763 |
2450 |
- |
2436 |
= |
14 |
* |
(26 |
/ |
162) |
= |
2.24691358 |
4 |
84764 |
2533 |
- |
2485 |
= |
48 |
* |
(33 |
/ |
162) |
= |
9.77777774 |
5 |
84767 |
2520 |
- |
2528 |
= |
-8 |
* |
(20 |
/ |
162) |
= |
-0.98765432 |
6 |
84769 |
2556 |
- |
2552 |
= |
4 |
* |
(25 |
/ |
162) |
= |
0.61728395 |
7 |
84770 |
2576 |
- |
2567 |
= |
9 |
* |
(28 |
/ |
162) |
= |
1.55555555 |
8 |
84773 |
2675 |
- |
2586 |
= |
89 |
* |
(30 |
/ |
162) |
= |
16.48148147 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Millville Elementary
|
30 |
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 |
87108 |
2454 |
- |
2436 |
= |
18 |
* |
(34 |
/ |
168) |
= |
3.64285714 |
4 |
87110 |
2528 |
- |
2485 |
= |
43 |
* |
(27 |
/ |
168) |
= |
6.91071426 |
5 |
87113 |
2550 |
- |
2528 |
= |
22 |
* |
(38 |
/ |
168) |
= |
4.97619047 |
6 |
87114 |
2571 |
- |
2552 |
= |
19 |
* |
(22 |
/ |
168) |
= |
2.48809522 |
7 |
87116 |
2598 |
- |
2567 |
= |
31 |
* |
(22 |
/ |
168) |
= |
4.05952378 |
8 |
87119 |
2620 |
- |
2586 |
= |
34 |
* |
(25 |
/ |
168) |
= |
5.05952378 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Millville Elementary
|
27 |
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 |
87352 |
2467 |
- |
2436 |
= |
31 |
* |
(24 |
/ |
165) |
= |
4.5090909 |
4 |
87355 |
2529 |
- |
2485 |
= |
44 |
* |
(36 |
/ |
165) |
= |
9.59999999 |
5 |
87356 |
2527 |
- |
2528 |
= |
-1 |
* |
(34 |
/ |
165) |
= |
-0.20606061 |
6 |
87359 |
2598 |
- |
2552 |
= |
46 |
* |
(32 |
/ |
165) |
= |
8.92121208 |
7 |
87360 |
2576 |
- |
2567 |
= |
9 |
* |
(20 |
/ |
165) |
= |
1.09090909 |
8 |
87363 |
2653 |
- |
2586 |
= |
67 |
* |
(19 |
/ |
165) |
= |
7.71515151 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Millville Elementary
|
32 |
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 |
87983 |
2476 |
- |
2436 |
= |
40 |
* |
(23 |
/ |
171) |
= |
5.38011692 |
4 |
87984 |
2530 |
- |
2485 |
= |
45 |
* |
(29 |
/ |
171) |
= |
7.63157894 |
5 |
87985 |
2556 |
- |
2528 |
= |
28 |
* |
(34 |
/ |
171) |
= |
5.56725145 |
6 |
87986 |
2575 |
- |
2552 |
= |
23 |
* |
(34 |
/ |
171) |
= |
4.57309941 |
7 |
87987 |
2623 |
- |
2567 |
= |
56 |
* |
(31 |
/ |
171) |
= |
10.15204674 |
8 |
87988 |
2625 |
- |
2586 |
= |
39 |
* |
(20 |
/ |
171) |
= |
4.5614035 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Millville Elementary
|
38 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
20
|
30
|
27
|
32
|
38
|
147.0 |
29.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 47.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 11.4
For the lines, you have the data necessary to plot the chart.