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 |
937932 |
2360 |
- |
2436 |
= |
-76 |
* |
(65 |
/ |
193)
|
= |
-25.59585486 |
| 4 |
937935 |
2418 |
- |
2485 |
= |
-67 |
* |
(50 |
/ |
193)
|
= |
-17.35751292 |
| 5 |
937936 |
2432 |
- |
2528 |
= |
-96 |
* |
(78 |
/ |
193)
|
= |
-38.79792739 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Normont Elementary
|
-82 |
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 |
29667 |
2356 |
- |
2436 |
= |
-80 |
* |
(57 |
/ |
167)
|
= |
-27.3053892 |
| 4 |
29668 |
2424 |
- |
2485 |
= |
-61 |
* |
(65 |
/ |
167)
|
= |
-23.74251492 |
| 5 |
29671 |
2412 |
- |
2528 |
= |
-116 |
* |
(45 |
/ |
167)
|
= |
-31.25748493 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Normont Elementary
|
-82 |
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 |
30232 |
2381 |
- |
2436 |
= |
-55 |
* |
(60 |
/ |
173)
|
= |
-19.0751445 |
| 4 |
30234 |
2429 |
- |
2485 |
= |
-56 |
* |
(57 |
/ |
173)
|
= |
-18.45086701 |
| 5 |
30235 |
2430 |
- |
2528 |
= |
-98 |
* |
(56 |
/ |
173)
|
= |
-31.72254326 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Normont Elementary
|
-69 |
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 |
30281 |
2404 |
- |
2436 |
= |
-32 |
* |
(48 |
/ |
164)
|
= |
-9.36585363 |
| 4 |
30283 |
2412 |
- |
2485 |
= |
-73 |
* |
(62 |
/ |
164)
|
= |
-27.59756094 |
| 5 |
30285 |
2465 |
- |
2528 |
= |
-63 |
* |
(54 |
/ |
164)
|
= |
-20.7439024 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Normont 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 |
30454 |
2381 |
- |
2436 |
= |
-55 |
* |
(48 |
/ |
152)
|
= |
-17.36842102 |
| 4 |
30455 |
2443 |
- |
2485 |
= |
-42 |
* |
(40 |
/ |
152)
|
= |
-11.05263155 |
| 5 |
30456 |
2448 |
- |
2528 |
= |
-80 |
* |
(64 |
/ |
152)
|
= |
-33.68421048 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Normont Elementary
|
-62 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-82
|
-82
|
-69
|
-58
|
-62
|
-353.0 |
-70.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -37.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -103.6
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:
