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 |
2364496 |
2484 |
- |
2436 |
= |
48 |
* |
(41 |
/ |
121)
|
= |
16.2644628 |
| 4 |
2364499 |
2491 |
- |
2485 |
= |
6 |
* |
(41 |
/ |
121)
|
= |
2.03305785 |
| 5 |
2364500 |
2560 |
- |
2528 |
= |
32 |
* |
(39 |
/ |
121)
|
= |
10.31404957 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Peabody (George) Elementary
|
29 |
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 |
72240 |
2504 |
- |
2436 |
= |
68 |
* |
(44 |
/ |
128)
|
= |
23.375 |
| 4 |
72241 |
2509 |
- |
2485 |
= |
24 |
* |
(43 |
/ |
128)
|
= |
8.0625 |
| 5 |
72244 |
2549 |
- |
2528 |
= |
21 |
* |
(41 |
/ |
128)
|
= |
6.7265625 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Peabody (George) Elementary
|
38 |
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 |
74213 |
2522 |
- |
2436 |
= |
86 |
* |
(40 |
/ |
126)
|
= |
27.30158726 |
| 4 |
74215 |
2569 |
- |
2485 |
= |
84 |
* |
(43 |
/ |
126)
|
= |
28.66666664 |
| 5 |
74218 |
2540 |
- |
2528 |
= |
12 |
* |
(43 |
/ |
126)
|
= |
4.09523809 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Peabody (George) Elementary
|
60 |
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 |
74388 |
2503 |
- |
2436 |
= |
67 |
* |
(40 |
/ |
123)
|
= |
21.78861788 |
| 4 |
74389 |
2544 |
- |
2485 |
= |
59 |
* |
(41 |
/ |
123)
|
= |
19.66666665 |
| 5 |
74392 |
2612 |
- |
2528 |
= |
84 |
* |
(42 |
/ |
123)
|
= |
28.68292678 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Peabody (George) Elementary
|
70 |
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 |
74911 |
2508 |
- |
2436 |
= |
72 |
* |
(41 |
/ |
124)
|
= |
23.80645159 |
| 4 |
74912 |
2559 |
- |
2485 |
= |
74 |
* |
(42 |
/ |
124)
|
= |
25.0645161 |
| 5 |
74913 |
2589 |
- |
2528 |
= |
61 |
* |
(41 |
/ |
124)
|
= |
20.16935482 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Peabody (George) Elementary
|
69 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
29
|
38
|
60
|
70
|
69
|
266.0 |
53.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 107.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -0.8
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources:
