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 |
1440874 |
2447 |
- |
2436 |
= |
11 |
* |
(114 |
/ |
367)
|
= |
3.41689372 |
| 4 |
1440875 |
2521 |
- |
2485 |
= |
36 |
* |
(115 |
/ |
367)
|
= |
11.28065393 |
| 5 |
1440877 |
2531 |
- |
2528 |
= |
3 |
* |
(138 |
/ |
367)
|
= |
1.12806539 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Bathgate Elementary
|
16 |
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 |
45352 |
2465 |
- |
2436 |
= |
29 |
* |
(119 |
/ |
358)
|
= |
9.63966479 |
| 4 |
45354 |
2489 |
- |
2485 |
= |
4 |
* |
(119 |
/ |
358)
|
= |
1.32960894 |
| 5 |
45356 |
2556 |
- |
2528 |
= |
28 |
* |
(120 |
/ |
358)
|
= |
9.38547484 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Bathgate Elementary
|
20 |
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 |
46563 |
2482 |
- |
2436 |
= |
46 |
* |
(94 |
/ |
321)
|
= |
13.47040494 |
| 4 |
46565 |
2513 |
- |
2485 |
= |
28 |
* |
(111 |
/ |
321)
|
= |
9.68224298 |
| 5 |
46566 |
2517 |
- |
2528 |
= |
-11 |
* |
(116 |
/ |
321)
|
= |
-3.97507788 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Bathgate Elementary
|
19 |
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 |
46573 |
2485 |
- |
2436 |
= |
49 |
* |
(103 |
/ |
325)
|
= |
15.52923072 |
| 4 |
46574 |
2521 |
- |
2485 |
= |
36 |
* |
(104 |
/ |
325)
|
= |
11.52 |
| 5 |
46577 |
2524 |
- |
2528 |
= |
-4 |
* |
(118 |
/ |
325)
|
= |
-1.45230769 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Bathgate Elementary
|
26 |
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 |
46755 |
2477 |
- |
2436 |
= |
41 |
* |
(95 |
/ |
301)
|
= |
12.9401993 |
| 4 |
46756 |
2519 |
- |
2485 |
= |
34 |
* |
(102 |
/ |
301)
|
= |
11.52159465 |
| 5 |
46757 |
2548 |
- |
2528 |
= |
20 |
* |
(104 |
/ |
301)
|
= |
6.910299 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Bathgate Elementary
|
31 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
16
|
20
|
19
|
26
|
31
|
112.0 |
22.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 40.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 4.4
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:
