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 |
967167 |
2387 |
- |
2436 |
= |
-49 |
* |
(91 |
/ |
292)
|
= |
-15.27054792 |
| 4 |
967169 |
2410 |
- |
2485 |
= |
-75 |
* |
(103 |
/ |
292)
|
= |
-26.45547945 |
| 5 |
967170 |
2442 |
- |
2528 |
= |
-86 |
* |
(98 |
/ |
292)
|
= |
-28.86301367 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Twentieth Street Elementary
|
-71 |
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 |
30600 |
2381 |
- |
2436 |
= |
-55 |
* |
(95 |
/ |
296)
|
= |
-17.65202698 |
| 4 |
30603 |
2428 |
- |
2485 |
= |
-57 |
* |
(95 |
/ |
296)
|
= |
-18.29391887 |
| 5 |
30605 |
2429 |
- |
2528 |
= |
-99 |
* |
(106 |
/ |
296)
|
= |
-35.45270269 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Twentieth Street Elementary
|
-71 |
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 |
31165 |
2418 |
- |
2436 |
= |
-18 |
* |
(67 |
/ |
255)
|
= |
-4.72941176 |
| 4 |
31168 |
2438 |
- |
2485 |
= |
-47 |
* |
(94 |
/ |
255)
|
= |
-17.32549015 |
| 5 |
31169 |
2481 |
- |
2528 |
= |
-47 |
* |
(94 |
/ |
255)
|
= |
-17.32549015 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Twentieth Street Elementary
|
-39 |
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 |
31213 |
2438 |
- |
2436 |
= |
2 |
* |
(101 |
/ |
265)
|
= |
0.76226415 |
| 4 |
31215 |
2466 |
- |
2485 |
= |
-19 |
* |
(72 |
/ |
265)
|
= |
-5.16226415 |
| 5 |
31217 |
2460 |
- |
2528 |
= |
-68 |
* |
(92 |
/ |
265)
|
= |
-23.60754715 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Twentieth Street Elementary
|
-28 |
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 |
31388 |
2416 |
- |
2436 |
= |
-20 |
* |
(104 |
/ |
275)
|
= |
-7.56363636 |
| 4 |
31389 |
2467 |
- |
2485 |
= |
-18 |
* |
(96 |
/ |
275)
|
= |
-6.28363636 |
| 5 |
31390 |
2482 |
- |
2528 |
= |
-46 |
* |
(75 |
/ |
275)
|
= |
-12.54545451 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Twentieth Street Elementary
|
-26 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-71
|
-71
|
-39
|
-28
|
-26
|
-235.0 |
-47.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 19.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -113.0
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:
