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 |
1257320 |
2490 |
- |
2436 |
= |
54 |
* |
(204 |
/ |
1046) |
= |
10.53154872 |
4 |
1257323 |
2543 |
- |
2485 |
= |
58 |
* |
(176 |
/ |
1046) |
= |
9.7590822 |
5 |
1257324 |
2578 |
- |
2528 |
= |
50 |
* |
(190 |
/ |
1046) |
= |
9.08221795 |
6 |
1257327 |
2592 |
- |
2552 |
= |
40 |
* |
(171 |
/ |
1046) |
= |
6.53919692 |
7 |
1257328 |
2635 |
- |
2567 |
= |
68 |
* |
(151 |
/ |
1046) |
= |
9.81644355 |
8 |
1257331 |
2651 |
- |
2586 |
= |
65 |
* |
(154 |
/ |
1046) |
= |
9.56978965 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Reed Union Elementary
|
55 |
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 |
39199 |
2510 |
- |
2436 |
= |
74 |
* |
(175 |
/ |
1080) |
= |
11.99074074 |
4 |
39201 |
2540 |
- |
2485 |
= |
55 |
* |
(199 |
/ |
1080) |
= |
10.13425925 |
5 |
39203 |
2591 |
- |
2528 |
= |
63 |
* |
(173 |
/ |
1080) |
= |
10.09166666 |
6 |
39204 |
2616 |
- |
2552 |
= |
64 |
* |
(208 |
/ |
1080) |
= |
12.32592589 |
7 |
39206 |
2635 |
- |
2567 |
= |
68 |
* |
(177 |
/ |
1080) |
= |
11.14444438 |
8 |
39208 |
2658 |
- |
2586 |
= |
72 |
* |
(148 |
/ |
1080) |
= |
9.86666666 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Reed Union Elementary
|
66 |
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 |
40182 |
2478 |
- |
2436 |
= |
42 |
* |
(169 |
/ |
1059) |
= |
6.70254955 |
4 |
40183 |
2547 |
- |
2485 |
= |
62 |
* |
(177 |
/ |
1059) |
= |
10.36260622 |
5 |
40186 |
2564 |
- |
2528 |
= |
36 |
* |
(206 |
/ |
1059) |
= |
7.00283286 |
6 |
40188 |
2626 |
- |
2552 |
= |
74 |
* |
(163 |
/ |
1059) |
= |
11.38999053 |
7 |
40190 |
2634 |
- |
2567 |
= |
67 |
* |
(200 |
/ |
1059) |
= |
12.6534466 |
8 |
40192 |
2660 |
- |
2586 |
= |
74 |
* |
(144 |
/ |
1059) |
= |
10.06232294 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Reed Union Elementary
|
58 |
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 |
40206 |
2501 |
- |
2436 |
= |
65 |
* |
(148 |
/ |
1049) |
= |
9.17063869 |
4 |
40209 |
2529 |
- |
2485 |
= |
44 |
* |
(169 |
/ |
1049) |
= |
7.08865586 |
5 |
40210 |
2579 |
- |
2528 |
= |
51 |
* |
(176 |
/ |
1049) |
= |
8.55672064 |
6 |
40213 |
2591 |
- |
2552 |
= |
39 |
* |
(200 |
/ |
1049) |
= |
7.43565299 |
7 |
40214 |
2647 |
- |
2567 |
= |
80 |
* |
(169 |
/ |
1049) |
= |
12.8884652 |
8 |
40217 |
2656 |
- |
2586 |
= |
70 |
* |
(187 |
/ |
1049) |
= |
12.47855098 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Reed Union Elementary
|
58 |
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 |
40361 |
2502 |
- |
2436 |
= |
66 |
* |
(140 |
/ |
986) |
= |
9.37119671 |
4 |
40362 |
2543 |
- |
2485 |
= |
58 |
* |
(152 |
/ |
986) |
= |
8.94117647 |
5 |
40363 |
2563 |
- |
2528 |
= |
35 |
* |
(164 |
/ |
986) |
= |
5.821501 |
6 |
40364 |
2619 |
- |
2552 |
= |
67 |
* |
(173 |
/ |
986) |
= |
11.75557806 |
7 |
40365 |
2628 |
- |
2567 |
= |
61 |
* |
(194 |
/ |
986) |
= |
12.00202834 |
8 |
40366 |
2674 |
- |
2586 |
= |
88 |
* |
(163 |
/ |
986) |
= |
14.54766729 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Reed Union Elementary
|
62 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
55
|
66
|
58
|
58
|
62
|
299.0 |
59.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 71.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 47.8
For the lines, you have the data necessary to plot the chart.