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 |
91669 |
2465 |
- |
2436 |
= |
29 |
* |
(120 |
/ |
352)
|
= |
9.88636361 |
| 4 |
91670 |
2498 |
- |
2485 |
= |
13 |
* |
(121 |
/ |
352)
|
= |
4.46875 |
| 5 |
91673 |
2568 |
- |
2528 |
= |
40 |
* |
(111 |
/ |
352)
|
= |
12.61363636 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Lincoln 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 |
2578 |
2453 |
- |
2436 |
= |
17 |
* |
(128 |
/ |
365)
|
= |
5.96164383 |
| 4 |
2579 |
2504 |
- |
2485 |
= |
19 |
* |
(124 |
/ |
365)
|
= |
6.45479451 |
| 5 |
2581 |
2569 |
- |
2528 |
= |
41 |
* |
(113 |
/ |
365)
|
= |
12.69315068 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Lincoln Elementary
|
25 |
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 |
2650 |
2466 |
- |
2436 |
= |
30 |
* |
(127 |
/ |
375)
|
= |
10.15999998 |
| 4 |
2651 |
2500 |
- |
2485 |
= |
15 |
* |
(127 |
/ |
375)
|
= |
5.07999999 |
| 5 |
2653 |
2575 |
- |
2528 |
= |
47 |
* |
(121 |
/ |
375)
|
= |
15.1653333 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Lincoln Elementary
|
30 |
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 |
2653 |
2454 |
- |
2436 |
= |
18 |
* |
(115 |
/ |
367)
|
= |
5.64032696 |
| 4 |
2655 |
2515 |
- |
2485 |
= |
30 |
* |
(128 |
/ |
367)
|
= |
10.46321523 |
| 5 |
2657 |
2571 |
- |
2528 |
= |
43 |
* |
(124 |
/ |
367)
|
= |
14.52861034 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Lincoln Elementary
|
31 |
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 |
2675 |
2465 |
- |
2436 |
= |
29 |
* |
(118 |
/ |
354)
|
= |
9.66666666 |
| 4 |
2676 |
2500 |
- |
2485 |
= |
15 |
* |
(116 |
/ |
354)
|
= |
4.91525423 |
| 5 |
2677 |
2583 |
- |
2528 |
= |
55 |
* |
(120 |
/ |
354)
|
= |
18.64406775 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Lincoln Elementary
|
33 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
27
|
25
|
30
|
31
|
33
|
146.0 |
29.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 38.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 20.2
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:
