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 |
2226387 |
2386 |
- |
2436 |
= |
-50 |
* |
(97 |
/ |
331)
|
= |
-14.65256795 |
| 4 |
2226388 |
2432 |
- |
2485 |
= |
-53 |
* |
(125 |
/ |
331)
|
= |
-20.01510571 |
| 5 |
2226391 |
2471 |
- |
2528 |
= |
-57 |
* |
(109 |
/ |
331)
|
= |
-18.7703927 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Joyner Elementary
|
-53 |
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 |
68287 |
2429 |
- |
2436 |
= |
-7 |
* |
(89 |
/ |
273)
|
= |
-2.28205128 |
| 4 |
68290 |
2437 |
- |
2485 |
= |
-48 |
* |
(75 |
/ |
273)
|
= |
-13.18681315 |
| 5 |
68292 |
2482 |
- |
2528 |
= |
-46 |
* |
(109 |
/ |
273)
|
= |
-18.36630035 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Joyner Elementary
|
-34 |
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 |
70105 |
2411 |
- |
2436 |
= |
-25 |
* |
(121 |
/ |
311)
|
= |
-9.7266881 |
| 4 |
70107 |
2433 |
- |
2485 |
= |
-52 |
* |
(102 |
/ |
311)
|
= |
-17.05466235 |
| 5 |
70109 |
2478 |
- |
2528 |
= |
-50 |
* |
(88 |
/ |
311)
|
= |
-14.14790995 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Joyner Elementary
|
-41 |
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 |
70264 |
2370 |
- |
2436 |
= |
-66 |
* |
(98 |
/ |
307)
|
= |
-21.06840391 |
| 4 |
70266 |
2436 |
- |
2485 |
= |
-49 |
* |
(110 |
/ |
307)
|
= |
-17.55700321 |
| 5 |
70268 |
2489 |
- |
2528 |
= |
-39 |
* |
(99 |
/ |
307)
|
= |
-12.57654723 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Joyner Elementary
|
-51 |
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 |
70779 |
2384 |
- |
2436 |
= |
-52 |
* |
(93 |
/ |
294)
|
= |
-16.44897956 |
| 4 |
70780 |
2432 |
- |
2485 |
= |
-53 |
* |
(93 |
/ |
294)
|
= |
-16.76530609 |
| 5 |
70781 |
2469 |
- |
2528 |
= |
-59 |
* |
(108 |
/ |
294)
|
= |
-21.67346934 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Joyner Elementary
|
-55 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-53
|
-34
|
-41
|
-51
|
-55
|
-234.0 |
-46.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -22.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -70.8
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:
