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 |
934790 |
2392 |
- |
2436 |
= |
-44 |
* |
(73 |
/ |
219)
|
= |
-14.66666665 |
| 4 |
934793 |
2420 |
- |
2485 |
= |
-65 |
* |
(71 |
/ |
219)
|
= |
-21.07305935 |
| 5 |
934794 |
2416 |
- |
2528 |
= |
-112 |
* |
(75 |
/ |
219)
|
= |
-38.35616434 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Nevada Avenue Elementary
|
-74 |
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 |
29563 |
2377 |
- |
2436 |
= |
-59 |
* |
(75 |
/ |
217)
|
= |
-20.39170502 |
| 4 |
29564 |
2422 |
- |
2485 |
= |
-63 |
* |
(67 |
/ |
217)
|
= |
-19.45161288 |
| 5 |
29567 |
2430 |
- |
2528 |
= |
-98 |
* |
(75 |
/ |
217)
|
= |
-33.87096766 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Nevada Avenue Elementary
|
-74 |
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 |
30127 |
2374 |
- |
2436 |
= |
-62 |
* |
(67 |
/ |
197)
|
= |
-21.08629436 |
| 4 |
30130 |
2422 |
- |
2485 |
= |
-63 |
* |
(65 |
/ |
197)
|
= |
-20.78680199 |
| 5 |
30131 |
2447 |
- |
2528 |
= |
-81 |
* |
(65 |
/ |
197)
|
= |
-26.72588828 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Nevada Avenue 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 |
30177 |
2395 |
- |
2436 |
= |
-41 |
* |
(67 |
/ |
195)
|
= |
-14.08717946 |
| 4 |
30178 |
2416 |
- |
2485 |
= |
-69 |
* |
(63 |
/ |
195)
|
= |
-22.29230769 |
| 5 |
30181 |
2464 |
- |
2528 |
= |
-64 |
* |
(65 |
/ |
195)
|
= |
-21.33333331 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Nevada Avenue 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 |
30350 |
2396 |
- |
2436 |
= |
-40 |
* |
(51 |
/ |
169)
|
= |
-12.07100588 |
| 4 |
30351 |
2457 |
- |
2485 |
= |
-28 |
* |
(60 |
/ |
169)
|
= |
-9.94082838 |
| 5 |
30352 |
2471 |
- |
2528 |
= |
-57 |
* |
(58 |
/ |
169)
|
= |
-19.56213016 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Nevada Avenue Elementary
|
-42 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-74
|
-74
|
-69
|
-58
|
-42
|
-317.0 |
-63.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -24.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -102.4
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:
