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 |
2255364 |
2452 |
- |
2436 |
= |
16 |
* |
(57 |
/ |
231)
|
= |
3.94805194 |
| 4 |
2255365 |
2430 |
- |
2485 |
= |
-55 |
* |
(66 |
/ |
231)
|
= |
-15.71428568 |
| 5 |
2255368 |
2470 |
- |
2528 |
= |
-58 |
* |
(69 |
/ |
231)
|
= |
-17.32467528 |
| 6 |
2255369 |
2499 |
- |
2552 |
= |
-53 |
* |
(39 |
/ |
231)
|
= |
-8.9480519 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Lindbergh/Schweitzer Elementary
|
-38 |
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 |
69207 |
2446 |
- |
2436 |
= |
10 |
* |
(71 |
/ |
179)
|
= |
3.96648044 |
| 4 |
69209 |
2462 |
- |
2485 |
= |
-23 |
* |
(49 |
/ |
179)
|
= |
-6.29608937 |
| 5 |
69212 |
2446 |
- |
2528 |
= |
-82 |
* |
(59 |
/ |
179)
|
= |
-27.02793292 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Lindbergh/Schweitzer Elementary
|
-29 |
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 |
71041 |
2447 |
- |
2436 |
= |
11 |
* |
(63 |
/ |
180)
|
= |
3.85 |
| 4 |
71043 |
2477 |
- |
2485 |
= |
-8 |
* |
(65 |
/ |
180)
|
= |
-2.88888889 |
| 5 |
71045 |
2482 |
- |
2528 |
= |
-46 |
* |
(52 |
/ |
180)
|
= |
-13.28888885 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Lindbergh/Schweitzer Elementary
|
-12 |
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 |
71186 |
2435 |
- |
2436 |
= |
-1 |
* |
(40 |
/ |
148)
|
= |
-0.27027027 |
| 4 |
71188 |
2473 |
- |
2485 |
= |
-12 |
* |
(57 |
/ |
148)
|
= |
-4.62162162 |
| 5 |
71190 |
2518 |
- |
2528 |
= |
-10 |
* |
(51 |
/ |
148)
|
= |
-3.44594594 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Lindbergh/Schweitzer Elementary
|
-8 |
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 |
71673 |
2424 |
- |
2436 |
= |
-12 |
* |
(40 |
/ |
130)
|
= |
-3.69230768 |
| 4 |
71674 |
2467 |
- |
2485 |
= |
-18 |
* |
(35 |
/ |
130)
|
= |
-4.84615384 |
| 5 |
71675 |
2491 |
- |
2528 |
= |
-37 |
* |
(55 |
/ |
130)
|
= |
-15.65384615 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Lindbergh/Schweitzer Elementary
|
-24 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-38
|
-29
|
-12
|
-8
|
-24
|
-111.0 |
-22.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 13.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -58.2
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:
