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 |
902405 |
2409 |
- |
2436 |
= |
-27 |
* |
(84 |
/ |
262)
|
= |
-8.65648855 |
| 4 |
902408 |
2429 |
- |
2485 |
= |
-56 |
* |
(94 |
/ |
262)
|
= |
-20.091603 |
| 5 |
902409 |
2435 |
- |
2528 |
= |
-93 |
* |
(84 |
/ |
262)
|
= |
-29.81679389 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Fifteenth Street Elementary
|
-59 |
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 |
28515 |
2440 |
- |
2436 |
= |
4 |
* |
(71 |
/ |
248)
|
= |
1.14516129 |
| 4 |
28517 |
2444 |
- |
2485 |
= |
-41 |
* |
(86 |
/ |
248)
|
= |
-14.21774191 |
| 5 |
28519 |
2461 |
- |
2528 |
= |
-67 |
* |
(91 |
/ |
248)
|
= |
-24.58467736 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Fifteenth Street 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 |
29082 |
2418 |
- |
2436 |
= |
-18 |
* |
(86 |
/ |
237)
|
= |
-6.53164556 |
| 4 |
29083 |
2471 |
- |
2485 |
= |
-14 |
* |
(70 |
/ |
237)
|
= |
-4.13502109 |
| 5 |
29085 |
2464 |
- |
2528 |
= |
-64 |
* |
(81 |
/ |
237)
|
= |
-21.87341766 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Fifteenth Street Elementary
|
-33 |
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 |
29131 |
2421 |
- |
2436 |
= |
-15 |
* |
(81 |
/ |
241)
|
= |
-5.04149378 |
| 4 |
29132 |
2464 |
- |
2485 |
= |
-21 |
* |
(92 |
/ |
241)
|
= |
-8.0165975 |
| 5 |
29135 |
2487 |
- |
2528 |
= |
-41 |
* |
(68 |
/ |
241)
|
= |
-11.56846472 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Fifteenth Street Elementary
|
-25 |
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 |
29310 |
2421 |
- |
2436 |
= |
-15 |
* |
(77 |
/ |
253)
|
= |
-4.56521739 |
| 4 |
29311 |
2471 |
- |
2485 |
= |
-14 |
* |
(84 |
/ |
253)
|
= |
-4.64822134 |
| 5 |
29312 |
2470 |
- |
2528 |
= |
-58 |
* |
(92 |
/ |
253)
|
= |
-21.09090905 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Fifteenth Street Elementary
|
-30 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-59
|
-38
|
-33
|
-25
|
-30
|
-185.0 |
-37.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 2.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -76.0
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:
