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 |
886294 |
2356 |
- |
2436 |
= |
-80 |
* |
(69 |
/ |
178)
|
= |
-31.01123592 |
| 4 |
886297 |
2388 |
- |
2485 |
= |
-97 |
* |
(57 |
/ |
178)
|
= |
-31.06179774 |
| 5 |
886298 |
2408 |
- |
2528 |
= |
-120 |
* |
(52 |
/ |
178)
|
= |
-35.05617972 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Century Park Elementary
|
-97 |
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 |
28026 |
2361 |
- |
2436 |
= |
-75 |
* |
(58 |
/ |
164)
|
= |
-26.5243902 |
| 4 |
28029 |
2433 |
- |
2485 |
= |
-52 |
* |
(60 |
/ |
164)
|
= |
-19.02439022 |
| 5 |
28031 |
2410 |
- |
2528 |
= |
-118 |
* |
(46 |
/ |
164)
|
= |
-33.09756087 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Century Park Elementary
|
-79 |
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 |
28594 |
2403 |
- |
2436 |
= |
-33 |
* |
(50 |
/ |
154)
|
= |
-10.71428569 |
| 4 |
28595 |
2407 |
- |
2485 |
= |
-78 |
* |
(46 |
/ |
154)
|
= |
-23.29870124 |
| 5 |
28598 |
2411 |
- |
2528 |
= |
-117 |
* |
(58 |
/ |
154)
|
= |
-44.06493499 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Century Park Elementary
|
-78 |
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 |
28644 |
2382 |
- |
2436 |
= |
-54 |
* |
(40 |
/ |
131)
|
= |
-16.48854959 |
| 4 |
28647 |
2413 |
- |
2485 |
= |
-72 |
* |
(49 |
/ |
131)
|
= |
-26.93129767 |
| 5 |
28648 |
2392 |
- |
2528 |
= |
-136 |
* |
(42 |
/ |
131)
|
= |
-43.60305343 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Century Park Elementary
|
-87 |
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 |
28824 |
2348 |
- |
2436 |
= |
-88 |
* |
(58 |
/ |
134)
|
= |
-38.08955216 |
| 4 |
28825 |
2424 |
- |
2485 |
= |
-61 |
* |
(31 |
/ |
134)
|
= |
-14.11194026 |
| 5 |
28826 |
2392 |
- |
2528 |
= |
-136 |
* |
(45 |
/ |
134)
|
= |
-45.67164172 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Century Park Elementary
|
-98 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-97
|
-79
|
-78
|
-87
|
-98
|
-439.0 |
-87.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -60.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -114.8
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:
